Nonlinear Analysis: Real World Applications > 2016 > 31 > C > 569-579
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journal ISSN : | 1468-1218 |
DOI | 10.1016/j.nonrwa.2016.03.003 |
Nonlinear Analysis: Real World Applications > 2016 > 31 > C > 569-579
journal ISSN : | 1468-1218 |
DOI | 10.1016/j.nonrwa.2016.03.003 |