TY  - JOUR
AU  - Westbury, Bruce W.
TI  - Enumeration of non-positive planar trivalent graphs
JO  - Journal of Algebraic Combinatorics
PY  - 2007
SP  - 357
EP  - 373
VL  - 25
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JAC_2007__25_4_a4/
LA  - en
ID  - JAC_2007__25_4_a4
ER  -