TY - JOUR AU - Serag, Hassan M. AU - El-Zahrani, Eada A. TI - Maximum principle and existence of positive solutions for nonlinear systems on \(\mathbb R^N\) JO - Electronic journal of differential equations PY - 2005 VL - 2005 UR - http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a4/ LA - en ID - EJDE_2005__2005__a4 ER -