TY - JOUR AU - V. I. Utkin TI - Extensions of closed dissipative operators JO - Matematičeskie zametki PY - 1973 SP - 223 EP - 232 VL - 14 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1973_14_2_a7/ LA - ru ID - MZM_1973_14_2_a7 ER -