1.
Remmel J, Riehl M. Generating Functions for Permutations which Contain a Given Descent Set. Electron. J. Combin. [Internet]. 2010Feb.15 [cited 2026May24];17(1):#R27. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v17i1r27