TY  - JOUR
AU  - Jaak Hion
TI  - On nets of free polygons over a category and their categories of homomorphisms
JO  - Beiträge zur Algebra und Geometrie
PY  - 1987
SP  - 51
EP  - 74
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BAG_1987__24_138358/
ID  - BAG_1987__24_138358
ER  -