Fauvet, Frédéric, Loïc Foissy, and Dominique Manchon. “Operads of Finite Posets”. The Electronic Journal of Combinatorics 25, no. 1 (February 21, 2018): P1.44. Accessed April 4, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v25i1p44.