TY - JOUR AU - S. I. Zukhovitskii AU - G. I. Èskin TI - The approximation of abstract continuous functions by unbounded operator-functions JO - Doklady Akademii Nauk PY - 1957 SP - 731 EP - 734 VL - 116 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1957_116_5_a3/ LA - ru ID - DAN_1957_116_5_a3 ER -