@article{TAC_2005_14_a15,
     author = {Lars Br\"unjes and Christian Serp\'e},
     title = {Enlargements of categories},
     journal = {Theory and applications of categories},
     pages = {357--398},
     publisher = {mathdoc},
     volume = {14},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2005_14_a15/}
}