%0 Journal Article
%A A. V. Aizenshtat
%T On singular integral equations on a countable set of closed curves, each enclosed within another
%J Doklady Akademii Nauk
%D 1977
%P 985-988
%V 232
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_232_5_a0/
%G ru
%F DAN_1977_232_5_a0