@article{DE_1991_27_8_a18,
     author = {E. A. Sheina},
     title = {Eigenfunctions of a quasilinear elliptic operator in $\mathbf R^n$},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1436--1442},
     publisher = {mathdoc},
     volume = {27},
     number = {8},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_8_a18/}
}