Bugeaud, Yann, and Guo-Niu Han. “A Combinatorial Proof of the Non-Vanishing of Hankel Determinants of the Thue-Morse Sequence”. The Electronic Journal of Combinatorics 21, no. 3 (August 21, 2014): P3.26. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v21i3p26.