TY  - JOUR
AU  - Nikkuni, Ryo
TI  - An intrinsic nontriviality of graphs
JO  - Algebraic and Geometric Topology
PY  - 2009
SP  - 351
EP  - 364
VL  - 9
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2009.9.351/
DO  - 10.2140/agt.2009.9.351
ID  - 10_2140_agt_2009_9_351
ER  -