- R. Heintzmann, Q.S Hanley, D. Arndt-Jovin, and T.M. Jovin. A dual path programmable array microscope - simultaneous acquisition of conjugate and non-conjugate images. J. Microsc., 204, 119-137, 2001.
- R. Heintzmann and V. Sarafis. Two point resolution in incoherent imaging. Optik, 112, 114-118, 2001.
- B. Albrecht, A.V. Failla, R. Heintzmann, and C. Cremer. Spatially modulated illumination miÂcroscopy: online visualization of intensity distribution and prediction of nanometer precision of axial distance measurements by computer simulations. J. Biomed. Opt., 6, 292-299, 2001.