Gadouleau, Maximilien. “On the Rank and Periodic Rank of Finite Dynamical Systems”. The Electronic Journal of Combinatorics 25, no. 3 (September 21, 2018): P3.48. Accessed March 14, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v25i3p48.