Burns, Ethan, Matthew Hatem, Michael Leighton, and Wheeler Ruml. “Implementing Fast Heuristic Search Code”. Proceedings of the International Symposium on Combinatorial Search 3, no. 1 (July 19, 2012): 25–32. Accessed July 12, 2026. https://ojs.aaai.org/index.php/SOCS/article/view/18245.