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Mathematical Methods in the Applied Sciences > 44 > 2 > 1377 - 1393
Chaos, Solitons & Fractals > 2017 > 103 > C > 544-554
Chaos, Solitons & Fractals > 2017 > 98 > C > 189-198
Mathematical Methods in the Applied Sciences > 44 > 2 > 1377 - 1393
Chaos, Solitons & Fractals > 2017 > 103 > C > 544-554
Chaos, Solitons & Fractals > 2017 > 98 > C > 189-198