@article{TAC_2010_24_a16,
     author = {Dominique Bourn},
     title = {Internal profunctors and commutator theory; 
applications to extensions classification and categorical {Galois} {Theory}},
     journal = {Theory and applications of categories},
     pages = {451--488},
     publisher = {mathdoc},
     volume = {24},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2010_24_a16/}
}