%0 Journal Article %A V. F. Volkodavov %A O. K. Bystrova %T Construction of Riemann--Hadamard functions for a degenerate equation %J Differencialʹnye uravneniâ %D 1991 %P 1444-1446 %V 27 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_8_a20/ %G ru %F DE_1991_27_8_a20