TY - JOUR AU - A. G. Shukhov TI - An entropy invariant of automorphisms of $W^*$-algebras JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1981 SP - 94 EP - 95 VL - 15 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1981_15_2_a20/ LA - ru ID - FAA_1981_15_2_a20 ER -