TY  - JOUR
AU  - Timothy A. Schroeder
TI  - $\ell ^{2}$-homology and planar graphs
JO  - Colloquium Mathematicum
PY  - 2013
SP  - 129
EP  - 139
VL  - 131
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm131-1-11/
DO  - 10.4064/cm131-1-11
LA  - en
ID  - 10_4064_cm131_1_11
ER  -