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@article{DE_1973_9_2_a13, author = {L. M. Nevostruev}, title = {The {Neumann} problem for the general {Lavrent'ev--Bicadze} equation}, journal = {Differencialʹnye uravneni\^a}, pages = {320--324}, publisher = {mathdoc}, volume = {9}, number = {2}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_2_a13/} }
L. M. Nevostruev. The Neumann problem for the general Lavrent'ev--Bicadze equation. Differencialʹnye uravneniâ, Tome 9 (1973) no. 2, pp. 320-324. http://geodesic.mathdoc.fr/item/DE_1973_9_2_a13/