Bernardi, Olivier, and Alejandro H. Morales. “Some Probabilistic Trees With Algebraic Roots”. The Electronic Journal of Combinatorics 23, no. 2 (May 13, 2016): P2.36. Accessed March 14, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v23i2p36.