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Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2007 > 27 > 2 > 329-347
International Journal of Applied Mathematics and Computer Science > 2005 > 15 > 1 > 159-166
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2002 > 22 > 2 > 225-232
International Journal of Applied Mathematics and Computer Science > 2002 > 12 > 2 > 173-180
International Journal of Applied Mathematics and Computer Science > 2002 > 12 > 2 > 181-195
Discussiones Mathematicae, Differential Inclusions, Control and Optimization > 2001 > 21 > 2 > 261-282
International Journal of Applied Mathematics and Computer Science > 2001 > 11 > 4 > 899-920
Banach Center Publications > 1995 > 32 > 1 > 199-208