@article{DAN_1982_262_1_a12,
     author = {M. A. Grinfel'd},
     title = {Variational principles for the steady flows of ideal fluid},
     journal = {Doklady Akademii Nauk},
     pages = {54--57},
     publisher = {mathdoc},
     volume = {262},
     number = {1},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_262_1_a12/}
}