TY  - JOUR
AU  - Keedwell, A. D.
TI  - When is it hard to show that a quasigroup is a loop?
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 2008
SP  - 241
EP  - 247
VL  - 49
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_2008__49_2_a5/
LA  - en
ID  - CMUC_2008__49_2_a5
ER  -