TY - JOUR AU - M. A. Grinfel'd TI - A new problem of mathematical physics which is connected with the JO - Doklady Akademii Nauk PY - 1984 SP - 72 EP - 76 VL - 279 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1984_279_1_a16/ LA - ru ID - DAN_1984_279_1_a16 ER -