%0 Journal Article
%A Cherenack, Paul
%T Basic Objects for an Algebraic Homotopy Theory
%J Canadian journal of mathematics
%D 1972
%P 155-166
%V 24
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-014-6/
%R 10.4153/CJM-1972-014-6
%F 10_4153_CJM_1972_014_6