%0 Journal Article
%A B. Eckmann
%A P.J. Hilton
%T Homotopy Groups of Maps and Exact Sequences.
%J Commentarii mathematici Helvetici
%D 1960
%P 271-304
%V 34
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1960__34_139197/
%F CMH_1960__34_139197