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Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2006 > 26 > 1 > 143-158
Applicationes Mathematicae > 1995 > 23 > 1 > 13-23
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2006 > 26 > 1 > 143-158
Applicationes Mathematicae > 1995 > 23 > 1 > 13-23