@article{DAN_1987_295_1_a18,
     author = {V. E. Zakharov and L. I. Piterbarg},
     title = {Canonical variables for {Rossby} waves and drift waves in a plasma},
     journal = {Doklady Akademii Nauk},
     pages = {86--90},
     publisher = {mathdoc},
     volume = {295},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_295_1_a18/}
}