Nonlinear Analysis: Theory, Methods & Applications
Nonlinear Analysis > 2012 > 75 > 1 > 317-330
Nonlinear Analysis > 2012 > 75 > 5 > 2774-2792
Nonlinear Analysis > 2012 > 75 > 8 > 3457-3464
Nonlinear Analysis > 2012 > 75 > 9 > 3705-3722
Nonlinear Analysis > 2012 > 75 > 12 > 4471-4482
Nonlinear Analysis > 2012 > 75 > 13 > 5053-5068