TY - JOUR AU - Bek, Roman TI - Time change of objects and problem of their identification JO - Kybernetika PY - 1976 SP - 151 EP - 170 VL - 12 IS - 3 UR - http://geodesic.mathdoc.fr/item/KYB_1976_12_3_a2/ LA - en ID - KYB_1976_12_3_a2 ER -