%0 Journal Article %A V. A. Eleev %T Some boundary value problems for a certain degenerate hyperbolic equation of the second kind %J Differencialʹnye uravneniâ %D 1971 %P 25-33 %V 7 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_1_a2/ %G ru %F DE_1971_7_1_a2