TY - JOUR AU - V. A. Korobitsyn TI - Transformations of difference operators JO - Doklady Akademii Nauk PY - 1980 SP - 284 EP - 287 VL - 253 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_253_2_a7/ LA - ru ID - DAN_1980_253_2_a7 ER -