Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS2_1972__31_166265, author = {Trond Digernes}, title = {On {Classes} of {Projections} in a von {Neumann} {Algebra.}}, journal = {Mathematica Scandinavica}, pages = {191--200}, publisher = {mathdoc}, volume = {31}, year = {1972}, zbl = {0252.46074}, url = {http://geodesic.mathdoc.fr/item/MS2_1972__31_166265/} }
Trond Digernes. On Classes of Projections in a von Neumann Algebra.. Mathematica Scandinavica, Tome 31 (1972), pp. 191-200. http://geodesic.mathdoc.fr/item/MS2_1972__31_166265/