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Journal of Mathematical Analysis and Applications > 2017 > 448 > 2 > 982-1005
Applied Mathematics and Computation > 2014 > 243 > Complete > 232-244
Communications in Nonlinear Science and Numerical Simulation > 2012 > 17 > 12 > 5288-5290
Journal of Mathematical Analysis and Applications > 2012 > 396 > 1 > 225-242
Nonlinear Analysis: Real World Applications > 2012 > 13 > 3 > 1139-1151
Nonlinear Analysis: Real World Applications > 2011 > 12 > 3 > 1865-1874