Addario-Berry, Louigi, Borja Balle, and Guillem Perarnau. “Diameter and Stationary Distribution of Random $r$-Out Digraphs”. The Electronic Journal of Combinatorics 27, no. 3 (August 7, 2020): P3.28. Accessed March 27, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i3p28.