Meier Carlsen, Toke, and Kengo Matsumoto. “Some Remarks on the $C^*$-Algebras Associated With Subshifts”. MATHEMATICA SCANDINAVICA 95, no. 1 (September 1, 2004): 145–160. Accessed November 23, 2024. https://www.mscand.dk/article/view/14453.