@article{TAC_2010_24_a8,
     author = {Michel H\'ebert},
     title = {Finitely presentable morphisms in exact sequences},
     journal = {Theory and applications of categories},
     pages = {209--220},
     publisher = {mathdoc},
     volume = {24},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2010_24_a8/}
}