%0 Journal Article %A Alexander I. Kozhanov %T Boundary value problems for fourth-order Sobolev type equations %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2021 %P 425-432 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2021_14_4_a3/ %G en %F JSFU_2021_14_4_a3