@article{DE_1979_15_3_a13,
     author = {Tran Duc Van},
     title = {Nontriviality of infinite order {Sobolev} spaces with a weight on the whole {Euclidean} space, and solvability of some degenerate nonlinear equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {507--513},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_3_a13/}
}