%0 Journal Article %A S. A. Vorob'eva %A A. V. Glushak %T An Abstract Euler--Poisson--Darboux Equation Containing Powers of an Unbounded Operator %J Differencialʹnye uravneniâ %D 2001 %P 706-709 %V 37 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_5_a14/ %G ru %F DE_2001_37_5_a14