%0 Journal Article
%A Booss-Bavnbek, Bernhelm
%A Lesch, Matthias
%A Phillips, John
%T Unbounded Fredholm Operators and Spectral Flow
%J Canadian journal of mathematics
%D 2005
%P 225-250
%V 57
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2005-010-1/
%R 10.4153/CJM-2005-010-1
%F 10_4153_CJM_2005_010_1