• Fetecau, C.; Vieru, D.; Azhar, W.A. Natural Convection Flow of Fractional Nanofluids Over an Isothermal Vertical Plate with Thermal Radiation. Appl. Sci. 2017, 7, 247. https://doi.org/10.3390/app7030247.

  • Waqas Ali Azhar, Dumitru Vieru, and Constantin Fetecau , "Free convection flow of some fractional nanofluids over a moving vertical plate with uniform heat flux and heat source", Physics of Fluids 29, 082001 (2017) https://doi.org/10.1063/1.4996034.

  • Ali Azhar, W., Fetecau, C. & Vieru, D. MHD free convection flow of a viscous fluid in a rotating system with damped thermal transport, Hall current and slip effects. Eur. Phys. J. Plus 133, 353 (2018). https://doi.org/10.1140/epjp/i2018-12171-2.

  • Ali Azhar, W., Fetecau, C. & Vieru, D. Entropy generation due to fractional Couette flow in a rotating channel with exponential walls heating, https://doi.org/10.1615/HeatTransRes.2018021213

  • Bohner, M., Lupulescu, V., O’Regan, D. et al. Vector-valued functions on time scales and random differential equations. Comp. Appl. Math. 41, 153 (2022). https://doi.org/10.1007/s40314-022-01860-z.