@article{05076883,
title = {Stable meet semilattice fibrations and free restriction categories.},
journal = {Theory and Applications of Categories [electronic only]},
volume = {16},
year = {2006},
pages = {307-341},
zbl = {1106.18003},
language = {en},
url = {http://dml.mathdoc.fr/item/05076883}
}
Cockett, J.R.B.; Guo, Xiuzhan. Stable meet semilattice fibrations and free restriction categories.. Theory and Applications of Categories [electronic only], Tome 16 (2006) pp. 307-341. http://gdmltest.u-ga.fr/item/05076883/