%0 Journal Article %A Bek, Roman %T Time change of objects and problem of their identification %J Kybernetika %D 1976 %P -170 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1976__12_3_a2/ %G en %F KYB_1976__12_3_a2