@article{DAN_1986_286_6_a20,
     author = {A. A. Zaitsev},
     title = {Stationary {Whitham} waves and their dispersion relation},
     journal = {Doklady Akademii Nauk},
     pages = {1364--1369},
     publisher = {mathdoc},
     volume = {286},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_286_6_a20/}
}