@article{DE_1972_8_9_a9, author = {Ya. V. Bykov and K. A. Kiriy}, title = {The branchings of the solutions of a certain class of nonlinear partial differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {1627--1638}, publisher = {mathdoc}, volume = {8}, number = {9}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_9_a9/} }