Choi, Yemon, Ebrahim Samei, and Ross Stokke. “Extension of Derivations, and Connes- Amenability of the Enveloping Dual Banach Algebra”. MATHEMATICA SCANDINAVICA 117, no. 2 (December 14, 2015): 258–303. Accessed November 23, 2024. https://www.mscand.dk/article/view/22870.