TY  - JOUR
AU  - Ralf L. Cohen
TI  - The Geometry of ...2S3 and  Braid Orientations.
JO  - Inventiones mathematicae
PY  - 1979
SP  - 53
EP  - 68
VL  - 54
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1979__54_142672/
ID  - IM_1979__54_142672
ER  -