TY  - JOUR
AU  - Hedrlín, Z.
AU  - Mendelsohn, E.
TI  - The Category of Graphs with a Given Subgraph-with Applications to Topology and Algebra
JO  - Canadian journal of mathematics
PY  - 1969
SP  - 1506
EP  - 1517
VL  - 21
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-165-5/
DO  - 10.4153/CJM-1969-165-5
ID  - 10_4153_CJM_1969_165_5
ER  -