@article{GDZPPN002351765,
title = {On Classes of Projections in a von Neumann Algebra.},
journal = {Mathematica Scandinavica},
volume = {30},
year = {1972},
pages = {191-200},
zbl = {0252.46074},
url = {http://dml.mathdoc.fr/item/GDZPPN002351765}
}
Digernes, Trond. On Classes of Projections in a von Neumann Algebra.. Mathematica Scandinavica, Tome 30 (1972) pp. 191-200. http://gdmltest.u-ga.fr/item/GDZPPN002351765/