@article{DE_1978_14_4_a20,
     author = {L. A. Ivanov},
     title = {The {Cauchy} problem for operators that decompose into {Euler--Poisson--Darboux} factors},
     journal = {Differencialʹnye uravneni\^a},
     pages = {736--739},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_4_a20/}
}