McNamara P, Reutenauer C. $P$-Partitions and a Multi-Parameter Klyachko Idempotent. Electron. J. Combin. [Internet]. 2005Oct.31 [cited 2026Mar.28];11(2):R21. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v11i2r21