TY - JOUR AU - Yu. L. Shmul'yan TI - Two-sided division in the ring of operators JO - Matematičeskie zametki PY - 1967 SP - 605 EP - 610 VL - 1 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1967_1_5_a13/ LA - ru ID - MZM_1967_1_5_a13 ER -