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@article{KUKZ_1977_14_14_a14, author = {Yu. M. Krikunov}, title = {An equation whose order degenerates along the line of change of type}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {137--140}, publisher = {mathdoc}, volume = {14}, number = {14}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1977_14_14_a14/} }
Yu. M. Krikunov. An equation whose order degenerates along the line of change of type. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 14 (1977) no. 14, pp. 137-140. http://geodesic.mathdoc.fr/item/KUKZ_1977_14_14_a14/