TY  - JOUR
AU  - Michel Hebert
TI  - Algebraically closed and existentially closed substructures in 
categorical context
JO  - Theory and applications of categories
PY  - 2004
SP  - 269
EP  - 298
VL  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TAC_2004_12_a8/
LA  - en
ID  - TAC_2004_12_a8
ER  -