Nonlinear Analysis: Theory, Methods & Applications
Nonlinear Analysis > 2009 > 71 > 7-8 > 2576-2584
Nonlinear Analysis > 2009 > 71 > 7-8 > 3218-3228
Nonlinear Analysis > 2009 > 71 > 7-8 > 2576-2584
Nonlinear Analysis > 2009 > 71 > 7-8 > 3218-3228