%0 Journal Article
%A B. V. Fedosov
%T An analytic formula for the index of an elliptic boundary-value problem
%J Sbornik. Mathematics
%D 1974
%P 61-90
%V 22
%N 1
%U http://geodesic.mathdoc.fr/item/SM_1974_22_1_a4/
%G en
%F SM_1974_22_1_a4