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Mathematical Methods in the Applied Sciences > 47 > 9 > 7473 - 7487
Advances in Difference Equations > 2019 > 2019 > 1 > 1-15
Applied Mathematics and Computation > 2012 > 219 > 4 > 2017-2025
Mathematical Methods in the Applied Sciences > 47 > 9 > 7473 - 7487
Advances in Difference Equations > 2019 > 2019 > 1 > 1-15
Applied Mathematics and Computation > 2012 > 219 > 4 > 2017-2025