TY - JOUR AU - Matias Menni TI - Closure operators in exact completions JO - Theory and applications of categories PY - 2001 SP - 522 EP - 540 VL - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAC_2001_8_a20/ LA - en ID - TAC_2001_8_a20 ER -