@article{1183529925, author = {de Korvin, Andre}, title = {Expectations in von Neumann algebras}, journal = {Bull. Amer. Math. Soc.}, volume = {74}, number = {6}, year = {1968}, pages = { 912-914}, language = {en}, url = {http://dml.mathdoc.fr/item/1183529925} }
de Korvin, Andre. Expectations in von Neumann algebras. Bull. Amer. Math. Soc., Tome 74 (1968) no. 6, pp. 912-914. http://gdmltest.u-ga.fr/item/1183529925/