%0 Journal Article %A B. I. Islomov %A G. B. Umarova %T On a boundary value problem for a mixed equation with three planes of type change in an infinite prismatic domain %J Vestnik KRAUNC. Fiziko-matematičeskie nauki %D 2021 %P 19-28 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VKAM_2021_34_1_a1/ %G ru %F VKAM_2021_34_1_a1