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@article{DE_1979_15_12_a8, author = {D. I. Kristev}, title = {The geometry of the solutions of elliptic equations}, journal = {Differencialʹnye uravneni\^a}, pages = {2174--2182}, publisher = {mathdoc}, volume = {15}, number = {12}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_12_a8/} }
D. I. Kristev. The geometry of the solutions of elliptic equations. Differencialʹnye uravneniâ, Tome 15 (1979) no. 12, pp. 2174-2182. http://geodesic.mathdoc.fr/item/DE_1979_15_12_a8/