%0 Journal Article
%A A. A. Irmatov
%T Topology of the space of Fredholm operators and invariants of non-linear Fredholm maps
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1990
%P 205-206
%V 45
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1990_45_1_a9/
%G en
%F RM_1990_45_1_a9