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@article{MS2_1978__42_166581, author = {Herbert Halpern}, title = {Spectra of operator equations and automorphism groups of von {Neumann} algebras.}, journal = {Mathematica Scandinavica}, pages = {135--149}, publisher = {mathdoc}, volume = {42}, year = {1978}, zbl = {0393.47027}, url = {http://geodesic.mathdoc.fr/item/MS2_1978__42_166581/} }
Herbert Halpern. Spectra of operator equations and automorphism groups of von Neumann algebras.. Mathematica Scandinavica, Tome 42 (1978), pp. 135-149. http://geodesic.mathdoc.fr/item/MS2_1978__42_166581/