@article{DAN_1994_335_5_a13,
     author = {N. N. Romanova},
     title = {Hamiltonian description of weakly nonlinear wave dynamics in},
     journal = {Doklady Akademii Nauk},
     pages = {592--594},
     publisher = {mathdoc},
     volume = {335},
     number = {5},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_5_a13/}
}