%0 Journal Article %A Yu. P. Apakov %A S. M. Mamajanov %T Boundary value problem for a fourth-order equation of parabolic-hyperbolic type with multiple characteristics, whose slopes are greater than one %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2022 %P 3-14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2022_4_a0/ %G ru %F IVM_2022_4_a0