%0 Journal Article
%A Yu. K. Lando
%A S. V. Yashchuk
%T On conditionally solvable integro-differential operators
%J Differencialʹnye uravneniâ
%D 1987
%P 902-904
%V 23
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_5_a26/
%G ru
%F DE_1987_23_5_a26