1.
Méndez MA, Sánchez Lamoneda R. Monops, Monoids and Operads: The Combinatorics of Sheffer Polynomials. Electron. J. Combin. [Internet]. 2018Aug.10 [cited 2026Mar.27];25(3):P3.25. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v25i3p25