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Journal of Mathematical Analysis and Applications > 2016 > 438 > 1 > 14-28
Nonlinear Analysis: Real World Applications > 2015 > 24 > Complete > 1-17
Journal of Mathematical Analysis and Applications > 2016 > 438 > 1 > 14-28
Nonlinear Analysis: Real World Applications > 2015 > 24 > Complete > 1-17