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Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2014 > 34 > 1 > 61-87
Commentationes Mathematicae > 2008 > 48 > 1
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2014 > 34 > 1 > 61-87
Commentationes Mathematicae > 2008 > 48 > 1