%0 Journal Article
%A N. V. Tsyvis
%A N. J. Yurchuk
%T A three-point problem for third-order operator-differential equations
%J Differencialʹnye uravneniâ
%D 1987
%P 877-881
%V 23
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_5_a18/
%G ru
%F DE_1987_23_5_a18