Baird M, Billey S, Demaine E, Demaine M, Eppstein D, Fekete S, Gordon G, Griffin S, Mitchell J, Swanson J. Existence and Hardness of Conveyor Belts. Electron. J. Combin. [Internet]. 2020Oct.30 [cited 2026Mar.14];27(4):P4.25. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v27i4p25