%0 Journal Article
%A Hedrlín, Z.
%A Mendelsohn, E.
%T The Category of Graphs with a Given Subgraph-with Applications to Topology and Algebra
%J Canadian journal of mathematics
%D 1969
%P 1506-1517
%V 21
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-165-5/
%R 10.4153/CJM-1969-165-5
%F 10_4153_CJM_1969_165_5