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Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2015 > 35 > 1 > 25-46
International Journal of Applied Mathematics and Computer Science > 2014 > 24 > 4 > 713-722
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2015 > 35 > 1 > 25-46
International Journal of Applied Mathematics and Computer Science > 2014 > 24 > 4 > 713-722