%0 Journal Article
%A I. B. Simonenko
%T On the question of the solvability of bisingular and polysingular equations
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1971
%P 93-94
%V 5
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1971_5_1_a18/
%G ru
%F FAA_1971_5_1_a18