TY  - JOUR
AU  - Mitchell, Barry
TI  - The Cohomological Dimension of a Directed Set
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 233
EP  - 238
VL  - 25
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-023-0/
DO  - 10.4153/CJM-1973-023-0
ID  - 10_4153_CJM_1973_023_0
ER  -