1. Les anneaux d’opérateurs de classe finie;Dixmier, J.;Ann. Sci. \'{E}cole Norm. Sup. (3),1949
2. The Radon-Nikodým theorem for finite rings of operators;Dye, H. A.;Trans. Amer. Math. Soc.,1952
3. Some contributions to the theory of rings of operators;Griffin, Ernest L., Jr.;Trans. Amer. Math. Soc.,1953
4. Unitary equivalence of factors of type 𝐼𝐼𝐼;Misonou, Yosinao;Proc. Japan Acad.,1953
5. On rings of operators;Murray, F. J.;Ann. of Math. (2),1936