Popa, Sorin, and Dimitri Shlyakhtenko. “Cartan Subalgebras and Bimodule Decompositions of $ \mathrm{II}_1 $ Factors”. Mathematica Scandinavica 92, no. 1 (March 1, 2003): 93–102. Accessed July 24, 2026. https://journals.msp.org/mscand/article/view/824.