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Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2011 > 31 > 1 > 39-69
Journal of Mathematical Analysis and Applications > 2008 > 341 > 1 > 660-675
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2011 > 31 > 1 > 39-69
Journal of Mathematical Analysis and Applications > 2008 > 341 > 1 > 660-675