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@article{IM_1979__54_142672, author = {Ralf L. Cohen}, title = {The {Geometry} of {...2S3} and {Braid} {Orientations.}}, journal = {Inventiones mathematicae}, pages = {53--68}, publisher = {mathdoc}, volume = {54}, year = {1979}, url = {http://geodesic.mathdoc.fr/item/IM_1979__54_142672/} }
Ralf L. Cohen. The Geometry of ...2S3 and Braid Orientations.. Inventiones mathematicae, Tome 54 (1979), pp. 53-68. http://geodesic.mathdoc.fr/item/IM_1979__54_142672/