%0 Journal Article %A V. I. Bernik %A B. I. Ptashnic %A B. O. Salyga %T An analogue of the multipoint problem for a hyperbolic equation with constant coefficients %J Differencialʹnye uravneniâ %D 1977 %P 637-645 %V 13 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_4_a6/ %G ru %F DE_1977_13_4_a6