%0 Journal Article
%A Johannes Huebschmann
%T The first k-invariant, Quillen's space BG+ and the construction of Kann and Thurston.
%J Commentarii mathematici Helvetici
%D 1980
%P 314-318
%V 55
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1980__55_139828/
%F CMH_1980__55_139828