TY - JOUR AU - Akbar H. Begmatov TI - On a class of problems in integral geometry in the plane JO - Doklady Akademii Nauk PY - 1993 SP - 261 EP - 262 VL - 331 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1993_331_3_a0/ LA - ru ID - DAN_1993_331_3_a0 ER -