TY - JOUR AU - Obaid, H. A. AU - Ouifki, R. AU - Patidar, K. C. TI - An unconditionally stable nonstandard finite difference method applied to a mathematical model of HIV infection JO - International Journal of Applied Mathematics and Computer Science PY - 2013 SP - 357 EP - 372 VL - 23 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IJAMCS_2013_23_2_a8/ LA - en ID - IJAMCS_2013_23_2_a8 ER -