%0 Journal Article %A T. A. Samarskaya %T On a generalization of Steklov's decomposability theorem to the case of nonlocal boundary conditions %J Differencialʹnye uravneniâ %D 1989 %P 2008-2010 %V 25 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_11_a29/ %G ru %F DE_1989_25_11_a29