@article{VUU_2018_28_3_a4,
     author = {D. O. Tsvetkov},
     title = {Small motions of an ideal stratified fluid partially covered with elastic ice},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {328--347},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2018_28_3_a4/}
}