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@article{DE_1977_13_9_a12, author = {I. E. Mozolevski}, title = {The joining together of degenerate elliptic {equations.~I}}, journal = {Differencialʹnye uravneni\^a}, pages = {1667--1677}, publisher = {mathdoc}, volume = {13}, number = {9}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_9_a12/} }
I. E. Mozolevski. The joining together of degenerate elliptic equations.~I. Differencialʹnye uravneniâ, Tome 13 (1977) no. 9, pp. 1667-1677. http://geodesic.mathdoc.fr/item/DE_1977_13_9_a12/