TY - JOUR AU - A. I. Leonov TI - On the Korteweg--de Vries equations in the nonlinear theory of surface- and internal waves JO - Doklady Akademii Nauk PY - 1976 SP - 820 EP - 823 VL - 229 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1976_229_4_a10/ LA - ru ID - DAN_1976_229_4_a10 ER -