TY  - JOUR
AU  - B.O. Bainson
AU  - N.D. Gilbert
TI  - The homology of principally directed ordered groupoids
JO  - Homology, homotopy, and applications
PY  - 2020
SP  - 163
EP  - 172
VL  - 22
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4310/HHA.2020.v22.n2.a10/
DO  - 10.4310/HHA.2020.v22.n2.a10
LA  - en
ID  - HHA_2020_22_2_a9
ER  -