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@article{DE_1980_16_3_a13, author = {U. Raitums}, title = {Closure in $L_2$ of the set of solutions of a family of nonlinear elliptic equations}, journal = {Differencialʹnye uravneni\^a}, pages = {501--506}, publisher = {mathdoc}, volume = {16}, number = {3}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_3_a13/} }
U. Raitums. Closure in $L_2$ of the set of solutions of a family of nonlinear elliptic equations. Differencialʹnye uravneniâ, Tome 16 (1980) no. 3, pp. 501-506. http://geodesic.mathdoc.fr/item/DE_1980_16_3_a13/