1. On the crossed product of abelian von Neumann algebras II;Choda,1967
2. Les Algèbres d'Operateurs dans l'Espace Hilbertien;Dixmier,1957
3. On groups of measure-preserving transformations I;Dye;Amer. J. Math.,1959
4. On groups of measure-preserving transformations II;Dye;Amer. J. Math.,1963
5. Type I C∗-algebras;Glimm;Ann. of Math.,1961