TY - GEN PB - University of Zielona Góra Press, Poland L1 - http://www.zbc.uz.zgora.pl/Content/10406/blaszczyk.pdf L2 - http://www.zbc.uz.zgora.pl/Content/10406 T1 - International Journal of Applied Mathematics and Computer Science (AMCS) 2007, volume 17, number 4 UR - http://www.zbc.uz.zgora.pl/dlibra/docmetadata?id=10406 ER -