TY  - JOUR
AU  - Tutte, W. T.
TI  - Chromatic Solutions
JO  - Canadian journal of mathematics
PY  - 1982
SP  - 741
EP  - 758
VL  - 34
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-051-4/
DO  - 10.4153/CJM-1982-051-4
ID  - 10_4153_CJM_1982_051_4
ER  -