%0 Journal Article %A G. P. Paskalev %T A nonlocal boundary value problem for a higher-order mixed equation %J Differencialʹnye uravneniâ %D 2000 %P 393-399 %V 36 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_3_a12/ %G ru %F DE_2000_36_3_a12