TY  - JOUR
AU  - Libor Barto
AU  - Petr Zima
TI  - Every group is representable by all natural transformations of some 
set-functor
JO  - Theory and applications of categories
PY  - 2005
SP  - 294
EP  - 309
VL  - 14
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TAC_2005_14_a12/
LA  - en
ID  - TAC_2005_14_a12
ER  -