%0 Journal Article %A T. D. Dzhuraev %A M. Mamazhanov %T Boundary value problems for a class of fourth-order equations of mixed type %J Differencialʹnye uravneniâ %D 1986 %P 25-31 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_1_a3/ %G ru %F DE_1986_22_1_a3