@article{TAC_2008_20_a0,
     author = {Erik Palmgren},
     title = {Locally cartesian closed categories without chosen constructions},
     journal = {Theory and applications of categories},
     pages = {5--17},
     publisher = {mathdoc},
     volume = {20},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2008_20_a0/}
}