TY - GEN PB - University of Zielona Góra Press, Poland L1 - http://zbc.uz.zgora.pl/Content/4836/HTML/10katar1.pdf L2 - http://zbc.uz.zgora.pl/Content/4836 T1 - International Journal of Applied Mathematics and Computer Science (AMCS) 2006, volume 16, number 3 UR - http://zbc.uz.zgora.pl/dlibra/docmetadata?id=4836 ER -