TY  - JOUR
AU  - Ulrich Oberst
TI  - Homology of Categories and Exactness of Direct Limits.
JO  - Mathematische Zeitschrift
PY  - 1968
SP  - 87
EP  - 115
VL  - 107
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1968__107_171056/
ID  - MZ_1968__107_171056
ER  -