Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1981_17_5_a10, author = {V. M. Ivakin}, title = {A modified {Dirichlet} problem for a degenerate elliptic equation}, journal = {Differencialʹnye uravneni\^a}, pages = {866--872}, publisher = {mathdoc}, volume = {17}, number = {5}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1981_17_5_a10/} }
V. M. Ivakin. A modified Dirichlet problem for a degenerate elliptic equation. Differencialʹnye uravneniâ, Tome 17 (1981) no. 5, pp. 866-872. http://geodesic.mathdoc.fr/item/DE_1981_17_5_a10/