TY - JOUR AU - S. S. Sannikov TI - Representations of a continuous group by unbounded operators JO - Doklady Akademii Nauk PY - 1967 SP - 1285 EP - 1288 VL - 177 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_177_6_a8/ LA - ru ID - DAN_1967_177_6_a8 ER -