%0 Journal Article %A Nielsen, Ole A. %T The Asymptotic Ratio Set and Direct Integral Decompositions of a Von Neumann Algebra %J Canadian journal of mathematics %D 1971 %P 598-607 %V 23 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-067-4/ %R 10.4153/CJM-1971-067-4 %F 10_4153_CJM_1971_067_4