TY  - JOUR
AU  - Branko Grünbaum
AU  - G.C. Sehphard
TI  - Isohedral tilings of the plane by polygons.
JO  - Commentarii mathematici Helvetici
PY  - 1978
SP  - 542
EP  - 571
VL  - 53
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1978__53_139755/
ID  - CMH_1978__53_139755
ER  -