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Differential Equations and Dynamical Systems > 2019 > 27 > 4 > 395-411
Journal of Mathematical Analysis and Applications > 2007 > 334 > 2 > 1462-1480
Differential Equations and Dynamical Systems > 2019 > 27 > 4 > 395-411
Journal of Mathematical Analysis and Applications > 2007 > 334 > 2 > 1462-1480