%0 Journal Article %A A. I. Kozhanov %A B. Koshanov %A J. Sultangazieva %T New boundary value problems for fourth-order quasi-hyperbolic equations %J Sibirskie èlektronnye matematičeskie izvestiâ %D 2019 %P 1410-1436 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/SEMR_2019_16_a100/ %G ru %F SEMR_2019_16_a100