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Elder M, Lee G, Rechnitzer A. Permutations Generated by a Depth 2 Stack and an Infinite Stack in Series are Algebraic. Electron. J. Combin. [Internet]. 2015Apr.29 [cited 2026Mar.17];22(2):P2.16. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v22i2p16