Saavedra, Manuel, and Helmuth Villavicencio. “On the Minimum Ergodic Average and Minimal Systems”. CUBO, A Mathematical Journal 24, no. 3 (December 21, 2022): 457–466. Accessed April 14, 2024. https://cubo.ufro.cl/ojs/index.php/cubo/article/view/3209.