@article{GDZPPN002351498, title = {Invariant States of von Neumann Algebras.}, journal = {Mathematica Scandinavica}, volume = {30}, year = {1972}, pages = {253-256}, zbl = {0245.46086}, url = {http://dml.mathdoc.fr/item/GDZPPN002351498} }
Stormer, Erling. Invariant States of von Neumann Algebras.. Mathematica Scandinavica, Tome 30 (1972) pp. 253-256. http://gdmltest.u-ga.fr/item/GDZPPN002351498/