TY  - JOUR
AU  - Danjun Huang
AU  - Weifan Wang
TI  - Planar graphs of maximum degree six without 7-cycles are class one
JO  - The electronic journal of combinatorics
PY  - 2012
VL  - 19
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.37236/2589/
DO  - 10.37236/2589
ID  - 10_37236_2589
ER  -