Advances in Difference Equations > 2013 > 2013 > 1 > 1-6
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journal e-ISSN : | 1687-1847 |
DOI | 10.1186/1687-1847-2013-89 |
Advances in Difference Equations > 2013 > 2013 > 1 > 1-6
journal e-ISSN : | 1687-1847 |
DOI | 10.1186/1687-1847-2013-89 |