TY  - JOUR
AU  - Neeman, Amnon
AU  - Retakh, Vladimir
TI  - Extension categories and their homotopy
JO  - Compositio Mathematica
PY  - 1996
SP  - 203
EP  - 242
VL  - 102
IS  - 2
PB  - Kluwer Academic Publishers
UR  - http://archive.numdam.org/item/CM_1996__102_2_203_0/
LA  - en
ID  - CM_1996__102_2_203_0
ER  -