@article{TAC_2009_22_a14,
     author = {Jacques Penon},
     title = {T-cat\'egories repr\'esentables},
     journal = {Theory and applications of categories},
     pages = {376--387},
     publisher = {mathdoc},
     volume = {22},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2009_22_a14/}
}