TY - JOUR AU - S. Yu. Rotfeld TI - Remarks on the singular numbers of a sum of completely continuous operators JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1967 SP - 95 EP - 96 VL - 1 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1967_1_3_a14/ LA - ru ID - FAA_1967_1_3_a14 ER -