%0 Journal Article %T Modularity in the Lattice of Projections of a von Neumann Algebra %J Canadian journal of mathematics %D 1984 %P 1021-1030 %V 36 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-058-6/ %R 10.4153/CJM-1984-058-6 %F 10_4153_CJM_1984_058_6