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Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2013 > 33 > 2 > 149-170
Nonlinear Analysis > 2005 > 61 > 3 > 405-423
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2013 > 33 > 2 > 149-170
Nonlinear Analysis > 2005 > 61 > 3 > 405-423