TY  - JOUR
AU  - Barr, Michael
TI  - Non-Abelian Torsion Theories
JO  - Canadian journal of mathematics
PY  - 1973
SP  - 1224
EP  - 1237
VL  - 25
IS  - 6
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-130-4/
DO  - 10.4153/CJM-1973-130-4
ID  - 10_4153_CJM_1973_130_4
ER  -