%0 Journal Article %A Yu. P. Krivenkov %T Some problems for Euler--Poisson--Darboux equation %J Doklady Akademii Nauk %D 1958 %P 397-400 %V 123 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_123_3_a2/ %G ru %F DAN_1958_123_3_a2