TY - JOUR AU - N. N. Romanova TI - Hamiltonian description of weakly nonlinear wave dynamics in JO - Doklady Akademii Nauk PY - 1994 SP - 592 EP - 594 VL - 335 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1994_335_5_a13/ LA - ru ID - DAN_1994_335_5_a13 ER -