TY - JOUR TI - Comments on "Effects of variable viscosity and thermal conductivity on unsteady MHD flow of non-Newtonian fluid over a stretching porous sheet", by Gamal M. Abdel-Rahman [Thermal science: year 2013, vol. 17, no. 4, pp. 1035-1047] AU - Mahmoud Mostafa A. A JN - Thermal Science PY - 2014 VL - 18 IS - 3 SP - 1041 EP - 1044 PT - Article AB -