%0 Journal Article %A Růžička, Milan %T Some problems in modelling of real systems by formalized ones %J Kybernetika %D 1983 %P 76-83 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1983__19_1_a7/ %G en %F KYB_1983__19_1_a7