%0 Journal Article
%A Seip, Ulrich
%T Categorical Fibrations
%J Canadian mathematical bulletin
%D 1967
%P 5-17
%V 10
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1967-002-8/
%R 10.4153/CMB-1967-002-8
%F 10_4153_CMB_1967_002_8