TY - JOUR AU - A. I. Plotkin TI - Isometric operators on subspaces of $L^p$ JO - Doklady Akademii Nauk PY - 1970 SP - 537 EP - 539 VL - 193 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_193_3_a10/ LA - ru ID - DAN_1970_193_3_a10 ER -