@article{02153120,
title = {On the homology of small categories and asynchronous transition systems.},
journal = {Homology, Homotopy and Applications},
volume = {6},
year = {2004},
pages = {439-471},
zbl = {1078.18005},
language = {en},
url = {http://dml.mathdoc.fr/item/02153120}
}
Husainov, Ahmet A. On the homology of small categories and asynchronous transition systems.. Homology, Homotopy and Applications, Tome 6 (2004) pp. 439-471. http://gdmltest.u-ga.fr/item/02153120/