%0 Journal Article
%A M. F. Atiyah
%A I. M. Singer
%T The index of elliptic operators. I
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1968
%V 23
%N 5
%U http://geodesic.mathdoc.fr/item/RM_1968_23_5_a6/
%G ru
%F RM_1968_23_5_a6