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@article{MZM_1983_33_5_a10, author = {M. S. Eremin}, title = {Problem~$E$ for an elliptic equation with two lines of degeneracy}, journal = {Matemati\v{c}eskie zametki}, pages = {757--762}, publisher = {mathdoc}, volume = {33}, number = {5}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1983_33_5_a10/} }
M. S. Eremin. Problem~$E$ for an elliptic equation with two lines of degeneracy. Matematičeskie zametki, Tome 33 (1983) no. 5, pp. 757-762. http://geodesic.mathdoc.fr/item/MZM_1983_33_5_a10/