@article{DE_1990_26_7_a18,
     author = {A. P. Smirnov and E. A. Sheina},
     title = {Existence of solitary vortices in a zonal flow},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1265--1271},
     publisher = {mathdoc},
     volume = {26},
     number = {7},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_7_a18/}
}