1.
Barnabei M, Bonetti F, Silimbani M. Two Permutation Classes related to the Bubble Sort Operator. Electron. J. Combin. [Internet]. 2012Aug.30 [cited 2026Apr.4];19(3):P25. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v19i3p25