@article{DE_1978_14_1_a19, author = {G. A. Dombrovskii}, title = {Some systems of first-order partial differential equations and the corresponding generalized {Euler-Poisson-Darboux} equations}, journal = {Differencialʹnye uravneni\^a}, pages = {174--176}, publisher = {mathdoc}, volume = {14}, number = {1}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1978_14_1_a19/} }