Pavlov, Alexander, Ulrich Pennig, and Thomas Schick. “Quasi-Multipliers of Hilbert and Banach $C^*$-Bimodules”. MATHEMATICA SCANDINAVICA 109, no. 1 (September 1, 2011): 71–92. Accessed November 24, 2024. https://www.mscand.dk/article/view/15178.