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@article{DE_1975_11_1_a5, author = {V. I. Evsin}, title = {The solvability of the {Holmgren} problem for a certain degenerate elliptic equation}, journal = {Differencialʹnye uravneni\^a}, pages = {38--46}, publisher = {mathdoc}, volume = {11}, number = {1}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1975_11_1_a5/} }
V. I. Evsin. The solvability of the Holmgren problem for a certain degenerate elliptic equation. Differencialʹnye uravneniâ, Tome 11 (1975) no. 1, pp. 38-46. http://geodesic.mathdoc.fr/item/DE_1975_11_1_a5/