TY - JOUR AU - M. V. Novitskii TI - Quasi-analytic classes of decreasing functions and integrals of motion of the Korteweg--de Vries equation JO - Doklady Akademii Nauk PY - 1994 SP - 150 EP - 152 VL - 335 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1994_335_2_a5/ LA - ru ID - DAN_1994_335_2_a5 ER -