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@article{IVM_1965_3_a10, author = {A. I. Koshelev}, title = {The convergence of an approximate method for degenerate elliptic equations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {98--104}, publisher = {mathdoc}, number = {3}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1965_3_a10/} }
A. I. Koshelev. The convergence of an approximate method for degenerate elliptic equations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1965), pp. 98-104. http://geodesic.mathdoc.fr/item/IVM_1965_3_a10/