%0 Journal Article
%A A. Yu. Savin
%A B. Yu. Sternin
%T Defect of index in the theory of non-local problems and the $\eta$-invariant
%J Sbornik. Mathematics
%D 2004
%P 1321-1358
%V 195
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2004_195_9_a5/
%G en
%F SM_2004_195_9_a5