@article{hal-00133491,
author = {Cassier, Gilles},
title = {Semigroups in finite von Neumann algebras},
journal = {HAL},
volume = {2001},
number = {0},
year = {2001},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00133491}
}
Cassier, Gilles. Semigroups in finite von Neumann algebras. HAL, Tome 2001 (2001) no. 0, . http://gdmltest.u-ga.fr/item/hal-00133491/