Nonlinear Analysis: Real World Applications > 2012 > 13 > 4 > 1749-1760
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journal ISSN : | 1468-1218 |
DOI | 10.1016/j.nonrwa.2011.12.005 |
Nonlinear Analysis: Real World Applications > 2012 > 13 > 4 > 1749-1760
journal ISSN : | 1468-1218 |
DOI | 10.1016/j.nonrwa.2011.12.005 |