M. Frölich, S. Sperlich (2019) Impact Evaluation: Treatment Effects and Causal Analysis, Cambridge University Press

F. Böker, S. Sperlich, W. Zucchini (2013) Statistikübungen für Bachelor- und Masterstudenten: Ein Arbeitsbuch mit einer Einführung in R, 2nd edition, Springer, Statistik und ihre Anwendungen, Heidelberg London New York

F. Böker, S. Sperlich, W. Zucchini (2011) Statistikübungen für Bachelor- und Masterstudenten: Ein Arbeitsbuch mit einer Einführung in R, Springer, Statistik und ihre Anwendungen, Heidelberg London New York

W. Zucchini, A. Schlegel, O. Nenadic, S. Sperlich (2009) Statistik für Bachelor- und Masterstudenten: Eine Einführung für Wirtschafts- und Sozialwissenschaftler, Springer, Statistik und ihre Anwendungen, Heidelberg London New York

S. Sperlich, W. Härdle, G. Aydinli [Eds.] (2006) The Art of Semiparametrics, Springer Series "Contributions to Statistics", ISBN: 3-7908-1700-7

W. Härdle, M. Müller, S. Sperlich, A. Werwatz (2004) Nonparametric and Semiparametric Models, Springer Series in Statistics, Springer-Verlag, Heidelberg, NY; ISBN: 3-540-20722-8

S. Sperlich (1998) Additive Modelling and Testing Model Specification. Shaker Verlag Aachen, ISBN: 3-8265-5685-2,

S. Scarpa, M.R. Ferrante, S. Sperlich (2025) Inference for the quantile ratio inequality index in the context of survey data. Journal of Survey Statistics and Methodology. doi.org/10.1093/jssam/smaf024

K. Reluga, M.J. Lombardía, S. Sperlich (2024) Bootstrap-based statistical inference for linear mixed effects under misspecifications. Computational Statistics & Data Analysis, 199, 108014. doi.org/10.1016/j.csda.2024.108014

C.Q. Valvason, S. Sperlich (2024) A Note on Simultaneous Confidence Intervals for Direct, Indirect and Synthetic Estimators. Stats, 7, 333-349.  doi.org/10.3390/stats7010020 

K. Reluga, M.J. Lombardía, S. Sperlich (2023) Simultaneous Inference for Empirical Best Predictors with a Poverty Study in Small Areas. Journal of the American Statistical Association, 118(541), 583-595 . doi.org/10.1080/01621459.2021.1942014 

D.J. Henderson and S. Sperlich (2023) A Complete Framework for Model-Free Difference-in-Differences Estimation. Foundations and Trends® in Econometrics, 12(3), 232-323. http://dx.doi.org/10.1561/0800000046  

P. Kramlinger, T. Krivobokova, S. Sperlich (2023) Marginal and Conditional Multiple Inference for Linear Mixed Model Predictors. Journal of the American Statistical Association, 118(544), 2344-2355. doi.org/10.1080/01621459.2022.2044826

I. Barbeito, R. Cao,  S. Sperlich (2023) Bandwidth selection for statistical matching and prediction. Test, 32, 418-446. doi.org/10.1007/s11749-022-00838-7 

S. Kanwar, S. Sperlich (2023) Direct Foreign Investment and Intellectual Property Reform in the South. The Journal of International Development, 35(6), 1456-1477. doi.org/10.1002/jid.3735 

K. Reluga, M.J. Lombardía, S. Sperlich (2023) Simultaneous Inference for linear mixed model parameters with an application to small area estimation. International Statistical Review, 91(2), 193-217.  doi.org/10.1111/insr.12519 

S. Sperlich (2022) Comments on: Hybrid Semiparametric Bayesian Networks. Test, 31, 335–339. doi.org/10.1007/s11749-022-00817-y 

G. Benini, S. Sperlich (2022) Modeling Heterogeneous Treatment Effects in the Presence of Endogeneity. Econometric Reviews, 41(3), 359-372. doi.org/10.1080/07474938.2021.1927548

E. Mammen, S. Sperlich (2022) Backfitting Tests in Generalised Structured Models. Biometrika, 109(1), 137-152. doi.org/10.1093/biomet/asaa108 ; Supplementary material; for software see wsbackfit and additional R, fortran and dll files

F. Peñaranda, J. Rodríguez-Poo, S. Sperlich (2022) Nonparametric Specification Testing of Conditional Asset Pricing Models. Journal of Business & Economic Statistics, 40:4, 1455-1469. doi.org/10.1080/07350015.2021.1933500

J. Roca-Pardiñas, M.X. Rodríguez-Álvarez, S. Sperlich (2021) Package wsbackfit for Smooth Backfitting Estimation of Generalized Structured Models. The R Journal, 13(1), 330-350. https://rjournal.github.io/articles/RJ-2021-042/

J.R. Uriarte, S. Sperlich (2021) A behavioural model of minority language shift: theory and empirical evidence. PLOS ONE, 16(7): doi.org/10.1371/journal.pone.0252453 

M.D. Esteban, D. Morales, A. Pérez, S. Sperlich (2021) On model-based nowcasting for highly disaggregated levels. Statistical Journal of the International Association for Official Statistics IAOS, 37(1), 279-292. doi.org/10.3233/SJI-200710

J.M. Sarabia, F. Prieto, V. Jorda, S. Sperlich (2020) A Note on Combining Machine Learning with Statistical Modelling for Financial Data Analysis. Risks, 8(2), 32. doi:10.3390/risks8020032

M. Olarreaga, S. Sperlich, V. Trachsel (2020) Exploring the heterogeneous effects of export promotion. World Bank Economic Review, 34 (2), 332–350.

S. Kanwar, S. Sperlich (2020) Innovation, Productivity and Intellectual Property Reform in an Emerging Market Economy: Evidence From India. Empirical Economics, 59, 933-950.

S. Ranjbar, S. Sperlich (2020) A note on empirical studies of life-satisfaction: Unhappy with semiparametrics? Journal of Happiness Studies, 21, 2193–2212. 

I.Moral-Arce, A. de las Heras Perez, S. Sperlich (2019) Recovering income distribution from aggregated data via micro-simulation. Spanish Journal of Statistics, 1(1), 13-29.

 E. Mammen, J.P. Nielsen, M. Scholz, S. Sperlich (2019) Conditional Variance Forecasts for Long-Term Stock Returns. Risks, 7, 113.  doi.org/10.3390/risks7040113

S. Sperlich (2018) Discussion of 'From start to finish: a framework for the production of small area official statistics by Tzavidis et al.'. Journal of the Royal Statistical Society, A, 181(4), 965.

S. Sperlich, Y. Sperlich (2017) Growth and Convergence in South-South Integration Areas: An Empirical Analysis. Review of International Economics, 25(4), 799-830.

M. Scholz, J.P. Nielsen, S. Sperlich (2016) Nonparametric Long Term Prediction of Stock Returns With Generated Bond Yields. Insurance: Mathematics and Economics, 69, 82-96.

J. Dai, S. Sperlich, W. Zucchini (2016) A simple method for predicting distributions by means of covariates with examples from welfare and health economics. Swiss Journal of Economics and Statistics, 152, 49-80.

J. Rodríguez-Poó, S. Sperlich, Ph. Vieu (2015) Specification Testing when the Null Hypothesis is Non- or Semiparametric. Econometric Theory, 31, 1281-1309.

M. Scholz, J.P. Nielsen, S. Sperlich (2015) Nonparametric Prediction of Stock Returns Based on Yearly Data: The Long-Term View. Insurance: Mathematics and Economics, 65, 143-155.

J. Bilbao-Ubillos, A. Fernández-Sainz, N.B. Heidenreich, S. Sperlich (2015) Flexible estimation of transport demand functions. Transportation Letters: the International Journal of Transportation Research, 7, 241-251.

S. Sperlich, R. Theler (2015) Modeling Heterogeneity: A Praise for Varying-coefficient Models in Causal Analysis. Computational Statistics, 30, 693-718.

I. Proença, S. Sperlich, D. Savasci  (2015) Semi-mixed effects Gravity Models for Bilateral Trade. Empirical Economics, 48, 361-387.

Y. Sperlich, S. Sperlich (2014) Income Development and Dispersion in the South-South Integration Areas. Journal of Economic Integration, 29, 726-758.

M. Köhler, A. Schindler, S. Sperlich (2014) A Review and Comparison of Bandwidth Selection Methods for Kernel Regression. International Statistical Review, 82, 243-274.

S. Sperlich (2014) On the Choice of Regularization Parameters in Specification Testing: a critical discussion. Empirical Economics, 47, 427-450.

R. Langrock, N.B. Heidenreich, S. Sperlich (2014) Kernel-based semiparametric multinomial logit modelling of political party preferences. Statistical Methods and Applications, 23, 435-449.

M.D. Martínez Miranda, E. Mammen, J.P. Nielsen, S. Sperlich (2014) Further theoretical and practical insight to the do-validated bandwidth selector. Journal of the Korean Statistical Society, 43, 355-365.

N.B. Heidenreich, A. Schindler, S. Sperlich (2013) Bandwidth Selection Methods for Kernel Density Estimation: a review of fully automatic selectors. AStA - Advances in Statistical Analysis, 97, 403-433.

S. Sperlich (2013) Comments on an updated review of Goodness-of-Fit tests for regression models: open questions and suggestions for calibration. Test, 22, 419-427.

M.D. Martínez Miranda, J.P. Nielsen, S. Sperlich, R. Verrall (2013) Continuous Chain Ladder: Reformulating and generalising a classical insurance problem. Expert Systems with Applications, 40, 5588-5603.

W. González Manteiga, M.D. Martínez-Miranda, M.J. Lombardía-Cortiña, S. Sperlich (2013) Kernel Smoothers and Bootstrapping for Semiparametric Mixed Effects Models. Journal of Multivariate Analysis, 114, 288-302.

I. Moral-Arce, J. Rodríguez-Poó, S. Sperlich (2013) Consumer Behavior Analysis for Luxury Goods - A Technical Note for Empirical Studies. Applied Economics Letters, 20, 358-363.

S. Sperlich (2013) Comments on Model-free model-fitting and predictive distributions: Applications to Small Area Statistics and Treatment Effect Estimation. Test, 22, 227-233.

M. Wiesenfarth, T. Krivobokova, S. Klasen, S. Sperlich (2012) Direct Simultaneous Inference in Additive Models and its Application to Model Undernutrition. Journal of the American Statistical Association, 107, 1286-1296.

M.J. Lombardía, S. Sperlich (2012) A new class of Semi-Mixed Effects Models and its Application in Small Area Estimation. Computational Statistics & Data Analysis, 56(10), 2903-2917.

Y. Sperlich, S. Sperlich (2012) Practical Tools for Monitoring Convergence and Development focusing on Integration Areas. Journal of Comparative Policy Analysis, 14, 72-103.

I. Moral-Arce, S. Sperlich, A.I. Fernández-Saínz, M.J. Roca (2012) Trends in the Gender Pay Gap in Spain: A Semiparametric Analysis. Journal of Labor Research, 33, 173-195.

M. Bernhardt-Römermann, C. Römermann, S. Sperlich, W. Schmidt (2011) Explaining grassland biomass - the contribution of biodiversity and climate depends on fertilisation and mowing frequency. Journal of Applied Ecology, 48, 1088-1097.

E. Mammen, M.D. Martínez Miranda, J.P. Nielsen, S. Sperlich (2011) Do-validation for Kernel Density Estimation. Journal of the American Statistical Association, 106, 651-660.

M. Requier-Desjardins, B. Adhikari, S. Sperlich (2011) Some Notes on the Economic Assessment of Land Degradation. Land Degradation and Development, 22, 285-298.

I. Moral-Arce, J. Rodríguez-Poó, S. Sperlich (2011) Low Dimensional Semiparametric Estimation in a Censored Regression Model. Journal of Multivariate Analysis, 102, 118-129.

K. Pendakur, S. Sperlich (2010) Semiparametric Estimation of Consumer Demand Systems in Real Expenditure with Partially Linear Price Effects. Journal of Applied Econometrics, 25, 420-457.

J. Roca Pardiñas, S. Sperlich (2010) Feasible Estimation in Generalized Structured Models. Statistics and Computing, 20(3), 367-379.

J. Dai, S. Sperlich (2010) Simple and Effective Boundary Correction for Kernel Densities and Regression with an Application to the World Income and Engel Curve Estimation. Computational Statistics & Data Analysis, 54, 2487-2497.

S. Sperlich, M.J. Lombardía (2010) Local Polynomial Inference for Small Area Statistics: Estimation, Validation and Prediction. Journal of Nonparametric Statistics, 22(5), 633-648.

J. Barrientos-Marin, S. Sperlich (2010) The Size Problem of Bootstrap Tests when the Null is Non- or Semiparametric. Revista Colombiana de Estadística, 33(2), 307-319.

K. Pendakur, M. Scholz, S. Sperlich (2010) Semiparametric Indirect Utility and Consumer Demand. Computational Statistics & Data Analysis, 54, 2763-2775.

S. Sperlich (2009) Discussion: Nonparametric estimation of noisy integral equations of the second kind. Journal of the Korean Statistical Society, 38(2), 111-113.

S. Sperlich (2009) A Note on Nonparametric Estimation with Predicted Variables. The Econometrics Journal, 12, 382-395.

J. Polzehl, S. Sperlich (2009) A Note on Structural Adaptive Dimension Reduction. Journal of Statistical Computation and Simulation, 79(6), 805-818.

C. San Juan, S. Sperlich (2009) Ganadería, adaptación al medio natural y eficiencia: A donde va la PAC? CLM Economía, 13, 141-157.

S. Sperlich (2009) Comments on: A Review on Empirical Likelihood Methods for Regression. Test, 18(3), 448-451.

O. Linton, S. Sperlich, I. Van Keilegom (2008) Estimation of a Semiparametric Transformation Model. The Annals of Statistics, 36, 686-718.

E. Decimavilla, C. San Juan, S. Sperlich (2008) Precio de la tierra con presión urbana: Un modelo para España. Economía Agraria y Recursos Naturales, 8(1), 3-20.

M.J. Lombardía, S. Sperlich (2008) Semiparametric Inference in Generalized Mixed Effects Models. Journal of the Royal Statistical Society, B, 70(5), 913-930.

W. Kleinhanss, C. Murillo, C. San Juan, S. Sperlich (2007) Efficiency, subsidies and environmental adaptation of animal farming under CAP. Agricultural Economics, 36 (1), 49-65.

J. Roca Pardiñas, S. Sperlich (2007) Testing the link when the index is semiparametric - A comparison study. Computational Statistics & Data Analysis, 12, 6565-6581.

C. Murillo, C. San Juan, S. Sperlich (2007) An Empirical Assessment of the EU Agricultural Policy Based on Firm Level Data. Journal of Economics and Statistics (Jahrbücher für Nationalökonomie und Statistik), 227 (3), 271-294.

N. Neumeyer, S. Sperlich (2006) Comparison of Separable Components in Different Samples. Scandinavian Journal of Statistics, 33, 477-501.

J. Rodríguez-Poó, S. Sperlich, A.I. Fernández (2005) Semiparametric Three Step Estimation Methods for Simultaneous Equation Systems. Journal of Applied Econometrics, 20, 699-721.

H. Dette, C. v. Lieres und Wilkau, S. Sperlich (2005) A comparison of different nonparametric methods for inference on additive models. Journal of Nonparametric Statistics, 17(1), 57-81.

J. P. Nielsen, S. Sperlich (2005) Smooth backfitting in practice. Journal of the Royal Statistical Society, B, 67(1), 43-61.

N.W. Hengartner, S. Sperlich (2005) Rate Optimal Estimation with the Integration Method in the Presence of Many Covariates. Journal of Multivariate Analysis, 95(2), 246-272.

W. Härdle, S. Huet, E. Mammen, S. Sperlich (2004) Bootstrap Inference in Semiparametric Generalized Additive Models. Econometric Theory, 20, 265-300.

S. Profit, S. Sperlich (2004) Non-Uniformity of Job-Matching in a Transition Economy -- A Nonparametric Analysis for the Czech Republic. Applied Economics, 36/7, 695-714.

L. Yang, S. Sperlich, W. Härdle (2003) Derivative Estimation and Testing in Generalized Additive Models. Journal Statistical Planning and Inference, 115/2, 521-542.

J. M. Rodríguez-Poó, S. Sperlich, Ph. Vieu (2003) Semiparametric Estimation of Separable Models with possibly Limited Dependent Variables. Econometric Theory, 19, 1008-1039.

J.P. Nielsen, S. Sperlich (2003) Prediction of stocks: A new way to look at it. Astin Bulletin, 33, 399-417.

S. Sperlich, D. Tjostheim and L. Yang (2002) Nonparametric Estimation and Testing of Interaction in Additive Models. Econometric Theory, 18, 197-251.

W. Härdle, S. Sperlich, and V. Spokoiny (2001) Adaptive Tests in Additive Regression. Revista de Estatística, 1, 185-186.

J.M. Rodríguez-Poó, S. Sperlich and Ph. Vieu (2001) Normalité asymptotique d'estimateurs de maximum de vraisemblance pour modèles non-paramétriques de régression multidimensionelle. C. R. Acad. Sci. Paris, 333, 61-64.

A. I. Fernández, J. Rodríguez-Poó and S. Sperlich (2001) A note on the parametric three step estimator in structural labor supply Model. economics letters, 74, 31-41.

W. Härdle, S. Sperlich and V. Spokoiny (2001) Structural tests in additive regression. Journal of the American Statistical Association, 96, 1333-1347.

S. Sperlich, O. Linton and W. Härdle (1999) Integration and Backfitting Methods in Additive Models - Finite Sample Properties and Comparison. Test, 8, 419-458.

E. Severance-Lossin and S. Sperlich (1999) Estimation of Derivatives for Additive Separable Models. Statistics, 33, 241-265.

W. Härdle, V. Spokoiny and S. Sperlich (1997) Semiparametric Single Index versus Fixed Link Function Modelling. The Annals of Statistics, 25, 212-243.

H. Dette and S. Sperlich (1996) Some application of Stieltjes transforms in the construction of optimal designs for nonlinear regression models. Computational Statistics & Data Analysis, 21, 273-292.

H. Dette and S. Sperlich (1994) A Note on Bayesian D-optimal Designs for a Generalization of the Exponential Growth Model. South African Statistical Journal, 28, 103-117.

S. Ranjbar, E. Ronchetti, S. Sperlich (2023) Bias calibration for robust estimation in small areas. In: Robust and Multivariate Statistical Models, Festschrift in honor of Dave Tyler, ed. M. Yi and K. Nordhausen; Springer Nature, Switzerland, 365-394.

J.R. Uriarte, S. Sperlich (2016) Economic Theory and Minority Language. In: Economics of Language Policy, ed. B.-A. Wickström and M. Gazzola; M.I.T. Press

I. Moral-Arce, S. Sperlich, A. Fernandez-Sainz (2013) The Semiparametric Juhn-Murphy-Pierce Decomposition of the Gender Pay Gap with an application to Spain. In: Wages and Employment: Economics, Structure and Gender Differences, ed. A. Mukherjee; Nova Science Publishers, Hauppauge NY, 3-20.

M.D. Martinez Miranda, J.P. Nielsen, S. Sperlich (2009) One Sided Cross Validation for Density Estimation. In: Operational Risk Towards Basel III: Best Practices and Issues in Modeling, Management and Regulation, ed. G.N.Gregoriou; John Wiley and Sons, Hoboken, New Jersey, 177-196.

S. Sperlich (2006) About Sense and Nonsense of Non- and Semiparametric Analysis in Applied Econometrics. In: The Art of Semiparametrics, eds. S. Sperlich, W. Härdle, G. Aydinli; Springer-Verlag (Contributions to Statistics), 91-111.

S. Sperlich, W. Härdle (2000) Finance. In: XploRe - Learning Guide, eds. W. Härdle, S. Klinke and M. Müller; Springer-Verlag, 285-306.

Y. Golubev, W. Härdle, Z. Hlavka, S. Klinke, M. Neumann, S. Sperlich (2000) Wavelets. In: XploRe - Learning Guide, eds. W. Härdle, S. Klinke and M. Müller, Springer-Verlag, 375-408.

S. Sperlich, J. Zelinka (2000) Generalized Additive Models. In: XploRe - Application Guide, eds. W. Härdle, Z. Hlavka and S. Klinke; Springer-Verlag, 171-220.

W. Härdle, S. Sperlich (1998) Financial calculations on the net. In: Risk Measurement, Econometrics and Neural Networks, eds. G. Bol, G. Nakhaeizadeh and K.-H. Vollmer, 53-56. Physica-Verlag.

S. Scarpa, MR. Ferrante, S. Sperlich (2025) Estimating a Quantile-Based Income Inequality Indicator on Complex Sampling Data. In: Methodological and Applied Statistics and Demography IV,  Springer Nature Switzerland, 506-510.

A.A. Batista, M.J. Lombardia-Cortina, E. Lopez-Vizcaino, S. Sperlich (2024) Estimación de ocupados, parados, inactivos y tasa de paro según nacionalidad extranjera, sexo y CC.AA. utilizando modelos a nivel de área. Technical Report for the National Statistical Office of Spain INE. Universidad de A Coruña, November 2024

A.A. Batista, M.J. Lombardia-Cortina, E. Lopez-Vizcaino, S. Sperlich (2024) Informe del modelo UFH aplicado a los datos del Objetivo 2 del INE. (Highly disaggregated Labor Market Data Analysis with the univariate Fay-Herriot model) Technical Report for the National Statistical Office of Spain INE. Universidad de A Coruña, July 2024

A.A. Batista, M.J. Lombardia-Cortina, E. Lopez-Vizcaino, S. Sperlich (2024) Informe del modelo BFH aplicado a los datos del Objetivo 1 del INE. (Simultaneous disaggregated Labor Market Data Analysis with the bivariate Fay-Herriot model) Technical Report for the National Statistical Office of Spain INE. Universidad de A Coruña, June 2024

S. Sperlich (2022) Von der Bewertung zur Methode ... und zurück. LeGes, 33:3, leges.weblaw.ch/legesissues/2022/3.html

J. Roca Pardiñas, MX. Rodríguez Alvarez, S. Sperlich (2020) wsbackfit - An R package for weighted smoothed backfitting, The R project

S. Sperlich. J. Rodríguez-Poó (2018) Global Statistics - Composite Indicators for International Comparisons. Massive Open Online course, coursera

S. Sperlich, I. Mueller (2018) Impact Evaluation of Maroc Export's Activities: On the heterogeneity of export promotion effects on firms. Technical Report for the International Trade Center ITC.

G. Benini, S. Sperlich, R. Theler (2016) Varying Coefficient Models Revisited: an Econometric View. In: Nonparametric Statistics. Springer Proceedings in Mathematics and Statistics, 59-73.

M. Köhler, S. Sperlich, J. Yoon (2016) A Varying Coefficient Model for Assessing the Returns to Growth To Account for Poverty and Inequality SSRN and arxiv.org/abs/1903.02390

S. Sperlich (2015) Porqué Econometría? In the Revista Máster: Banca y Mercados Financieros (Fundación UCEIF)

S. Sperlich, J-R. Uriarte (2014) Economic Theory and Minority Language. CESifo papers (Venice International University)

M. Köhler, S. Sperlich (2014) The Africa-Dummy: Gone with the Millennium? SSRN and arxiv.org/abs/1903.02357

J. Dai, I. Moral-Arce, S. Sperlich (2013) Calibrated estimation of a nonparametric income distribution from a few percentiles. In Proceedings 59th ISI World Statistics Congress: http://2013.isiproceedings.org/, 4352-4357.

S. Sperlich (2011) Economic Aspects and Social Drivers of Land Degradation. In the Proceedings of the UNCCD First Scientific Conference: Understanding Desertification and Land Degradation Trends, eds. M. Wislow, S. Sommer, H. Bigas, C. Martius, J. Vogt, M. Akhtar-Schuster, R. Thomas; JRC Scientific and Technical Reports, the European Commission, 56-58. (with conclusions and recommendations, 59-70).

S. Sperlich (2011) Book Review: Semiparametric and Nonparametric Econometrics (by J.L.Horowitz; Springer, 2009). Journal of the American Statistical Association, 106, 380.

A. Fernandez Sainz, S. Sperlich (2011) Predicción de la distribución del ingreso basado en Data Matching. Technical Report for the Institute of Fiscal Studies Madrid.

F. Böker, S. Sperlich, W. Zucchini (2011) Formelsammlung zu Statistikübungen für Bachelor- und Masterstudenten, Springer, Statistik und ihre Anwendungen -- Zusatzmaterial, 55pp.

S. Hess, S. von Cramon-Taubadel, S. Sperlich (2010) Numbers for Pascal: explaining differences in the estimated benefits of the Doha Development Agenda. DARE Discussion Papers 1001, Georg-August University of Göttingen

M.J. Lombardía, S. Sperlich (2010) Smooth transition from mixed to fixed effects models. In SMPS Proceeding: Combining Soft Computing and Statistical Methods in Data Analysis, eds. C. Borgelt, P. Grzegorzewski, M.. Gil, M.A. Lubiano, W. Trutschnig, G.G. Rodríguez; Advances in Intelligent and Soft Computing series, 77, 419-426.

M. Requier-Desjardins, S. Sperlich [lead authors] (2010) Chapter 3: Economic and Policy Considerations. In: Monitoring and Assessment of Desertification and Land Degradation: Knowledge Management, Institutions and Economics, White paper of the DSD Working Group 3 for the UNCCD, eds. M. Akhtar-Schuster, H. Bigas, R. Thomas; UNU Desertification Series, 9, 67-90.

M.J. Lombardía, S. Sperlich (2009) The Semi-Mixed Effects Model Class. In ISI Proceeding: isi.cbs.nl/iamamember/CD8-Durban2009/A5 Docs/1122.pdf

I. Molina Peralta, S. Sperlich, D. Morales (2008) Estadística II. (Editor: I. Molina Peralta) ISBN: 978-84-691-6383-2.

S. Sperlich, O.B. Linton, I. Van Keilegom (2008) A computational note on estimation of a semiparametric transformation model. Preprint ZfS-2008-02. Centre for Statistics. Georg-August Universität Göttingen, Germany.

J. Roca-Pardiñas, S. Sperlich (2008) Estimating Generalized Structured Models - A Computational Note. Discussion Paper, Georg August Universitat Göttingen, Germany.

M.J. Lombardía, S.Sperlich (2006) Semiparametric Inference in Generalized Mixed Effects Models. iasc-isi Proceedings, COMPSTAT-KNEMO.

N. Neumeyer, S. Sperlich (2004) Comparing Separable Components from Regression Models in Different Populations. In SEIO Proceeding: ISBN 84-689-0438-4 and 84-609-0438-5

S. Sperlich, V. Spokoiny (2003) Inference on Semiparametric Multi-Index Models. In ISI Proceeding: isi.cbs.nl/iamamember/CD3/index.html

S. Sperlich (2002) Proyecto Docente y de Investigaci on, Habil.: Universidad Carlos III de Madrid

S. Sperlich (2000) Book Review: Statistics. A Self-Teaching Guide (by D.J.Koosis, Wiley, 1997). Statistics, 34, 175-176.

S. Sperlich (2000) Book Review: Einführung in S und S-Plus (by A.Krause, Springer, 1997). Statistics, 34, 259-260.

S. Sperlich (2000) Book Review: Elements of Multivariate Time Series Analysis (by G.C.Reinsel, Springer, 1997). Statistics, 34, 260-261.

S. Sperlich (2000) Book Review: S-PLUS Learning by Doing (by F. Böker, Lucius & Lucius, 1997). Statistics, 34, 261-262.

S. Sperlich (2000) Book Review: Matrix Algebra from a Statistician's Perspective (by D.A.Harville, Springer, 1997). Statistics, 34, 263-264.

S. Sperlich (2000) Book Review: Multivariate Statistical Inference and Applications (by A.C.Rencher, Wiley, 1998). Statistics, 34, 264-265.

S. Sperlich (2000) Book Review: Kendall's Advanced Theory of Statistics: Classical Inference & The Linear Model (by A.Stuart, K.Ord, and S. Arnold, Arnold, 1999). Statistics, 34, 265-266.

S. Sperlich (1999) Book Review: General Statistics (by W.Chase and F.Brown, Wiley, 1997). Statistics, 33, 94-95.

S. Sperlich (1999) Book Review: Linear Models (by S.R.Searle, Wiley, 1997). Statistics, 33, 95-96.

S. Sperlich (1999) Book Review: General Statistics (by O.Nielsen, Wiley, 1997). Statistics, 33, 96-97.

U. Grasshoff , J. Schwalbach, S. Sperlich (1999) Executive Pay and Corporate Financial Performance - An Explorative Data Analysis. Working Paper 99-84, Carlos III de Madrid.

W. Härdle, S. Huet, E. Mammen, S. Sperlich (1998) Semiparametric additive indices for binary response and generalized additive models. Discussion Paper 95, sfb373, Humboldt Universität Berlin.

E. Böhmer, S. Sperlich (1997) Risikomessung mit VaR für Portfolios: Diskussion und empirischer Vergleich verschiedener Berechnungsmethoden. Discussion Paper 64, sfb373, Humboldt Universität Berlin.

W. Härdle, S. Sperlich, V. Spokoiny (1997) Component Analysis for Additive Models. Discussion Paper 52, sfb373, Humboldt Universität Berlin.

S. Sperlich (1994) Optimale Versuchspläne für nichtlineare Regressionsmodelle, Diplom - thesis: Georg August Universität Göttingen.