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@article{MS2_1967__21_166021, author = {Oma Hamara}, title = {On the {Structure} of the {Orthogonal} {Group.}}, journal = {Mathematica Scandinavica}, pages = {219--232}, publisher = {mathdoc}, volume = {21}, year = {1967}, zbl = {0186.04401}, url = {http://geodesic.mathdoc.fr/item/MS2_1967__21_166021/} }
Oma Hamara. On the Structure of the Orthogonal Group.. Mathematica Scandinavica, Tome 21 (1967), pp. 219-232. http://geodesic.mathdoc.fr/item/MS2_1967__21_166021/