@article{1178243321, author = {Hakeda, J\^osuke}, title = {On property ${\rm P}$ of von Neumann algebras}, journal = {Tohoku Math. J. (2)}, volume = {19}, number = {4}, year = {1967}, pages = { 238-242}, language = {en}, url = {http://dml.mathdoc.fr/item/1178243321} }
Hakeda, Jôsuke. On property ${\rm P}$ of von Neumann algebras. Tohoku Math. J. (2), Tome 19 (1967) no. 4, pp. 238-242. http://gdmltest.u-ga.fr/item/1178243321/