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@article{CMH_1982__57_139891, author = {K. Vogtmann}, title = {A {Stiefel} complex for the orthogonal group of a field.}, journal = {Commentarii mathematici Helvetici}, pages = {11--21}, publisher = {mathdoc}, volume = {57}, year = {1982}, zbl = {0506.20018}, url = {http://geodesic.mathdoc.fr/item/CMH_1982__57_139891/} }
K. Vogtmann. A Stiefel complex for the orthogonal group of a field.. Commentarii mathematici Helvetici, Tome 57 (1982), pp. 11-21. http://geodesic.mathdoc.fr/item/CMH_1982__57_139891/