Nonlinear Analysis: Theory, Methods & Applications
Nonlinear Analysis > 2003 > 53 > 1 > 111-137
Nonlinear Analysis > 2008 > 69 > 1 > 343-348
Nonlinear Analysis > 2008 > 69 > 8 > 2362-2368
Nonlinear Analysis > 2009 > 70 > 7 > 2685-2690
Nonlinear Analysis > 2009 > 71 > 12 > e738-e743
Nonlinear Analysis > 2010 > 73 > 4 > 1057-1064
Nonlinear Analysis > 2011 > 74 > 5 > 1878-1891