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Journal of Mathematical Analysis and Applications > 2017 > 449 > 2 > 1479-1501
Advances in Difference Equations > 2012 > 2012 > 1 > 1-12
Acta Applicandae Mathematicae > 2009 > 108 > 2 > 413-428
Journal of Mathematical Analysis and Applications > 2017 > 449 > 2 > 1479-1501
Advances in Difference Equations > 2012 > 2012 > 1 > 1-12
Acta Applicandae Mathematicae > 2009 > 108 > 2 > 413-428