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@article{DE_1976_12_1_a19, author = {A. I. Yanushauskas}, title = {Global methods of studying the oblique derivative problem for elliptic equations}, journal = {Differencialʹnye uravneni\^a}, pages = {159--171}, publisher = {mathdoc}, volume = {12}, number = {1}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_1_a19/} }
A. I. Yanushauskas. Global methods of studying the oblique derivative problem for elliptic equations. Differencialʹnye uravneniâ, Tome 12 (1976) no. 1, pp. 159-171. http://geodesic.mathdoc.fr/item/DE_1976_12_1_a19/