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@article{MS2_1973__32_166295, author = {A. van Daele and A. Connes}, title = {The {Group} {Property} of the {Invariant} {S} of von {Neumann} {Algebras.}}, journal = {Mathematica Scandinavica}, pages = {187--192}, publisher = {mathdoc}, volume = {32}, year = {1973}, zbl = {0268.46056}, url = {http://geodesic.mathdoc.fr/item/MS2_1973__32_166295/} }
A. van Daele; A. Connes. The Group Property of the Invariant S of von Neumann Algebras.. Mathematica Scandinavica, Tome 32 (1973), pp. 187-192. http://geodesic.mathdoc.fr/item/MS2_1973__32_166295/