@article{10_4153_CJM_2006_031_7, author = {Hu, Zhiguo and Neufang, Matthias}, title = {Decomposability of von {Neumann} {Algebras} and the {Mazur} {Property} of {Higher} {Level}}, journal = {Canadian journal of mathematics}, pages = {768--795}, year = {2006}, volume = {58}, number = {4}, doi = {10.4153/CJM-2006-031-7}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2006-031-7/} }