TY - JOUR AU - Dominique Bourn TI - Internal profunctors and commutator theory; applications to extensions classification and categorical Galois Theory JO - Theory and applications of categories PY - 2010 SP - 451 EP - 488 VL - 24 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAC_2010_24_a16/ LA - en ID - TAC_2010_24_a16 ER -