TY  - JOUR
TI  - On Adjacency Preserving Maps
JO  - Canadian mathematical bulletin
PY  - 1974
SP  - 403
EP  - 405
VL  - 17
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-074-7/
DO  - 10.4153/CMB-1974-074-7
ID  - 10_4153_CMB_1974_074_7
ER  -