Keshtkaran, Morteza, Roohollah Taghizadeh, and Koorush Ziarati. “A Novel Technique for Compressing Pattern Databases in the Pancake Sorting Problems”. Proceedings of the International Symposium on Combinatorial Search 2, no. 1 (August 19, 2021): 68–75. Accessed May 30, 2026. https://ojs.aaai.org/index.php/SOCS/article/view/18188.