@article{05672972,
title = {Categories, norms and weights.},
journal = {Journal of Homotopy and Related Structures},
volume = {2},
year = {2007},
pages = {171-186},
zbl = {1184.18006},
language = {en},
url = {http://dml.mathdoc.fr/item/05672972}
}
Grandis, M. Categories, norms and weights.. Journal of Homotopy and Related Structures, Tome 2 (2007) pp. 171-186. http://gdmltest.u-ga.fr/item/05672972/