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@article{DAN_1970_190_1_a14, author = {Yu. I. Cherskii}, title = {A normally solvable equation of smooth transition}, journal = {Doklady Akademii Nauk}, pages = {57--60}, publisher = {mathdoc}, volume = {190}, number = {1}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_190_1_a14/} }
Yu. I. Cherskii. A normally solvable equation of smooth transition. Doklady Akademii Nauk, Tome 190 (1970) no. 1, pp. 57-60. http://geodesic.mathdoc.fr/item/DAN_1970_190_1_a14/