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@article{DAN_1990_314_6_a6, author = {N. Yu. Kapustin and K. B. Sabitov}, title = {The {Riccati} equation in the theory of equations of mixed type}, journal = {Doklady Akademii Nauk}, pages = {1307--1311}, publisher = {mathdoc}, volume = {314}, number = {6}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1990_314_6_a6/} }
N. Yu. Kapustin; K. B. Sabitov. The Riccati equation in the theory of equations of mixed type. Doklady Akademii Nauk, Tome 314 (1990) no. 6, pp. 1307-1311. http://geodesic.mathdoc.fr/item/DAN_1990_314_6_a6/