Dold, Simon, and Malte Helmert. “Novelty Vs. Potential Heuristics: A Comparison of Hardness Measures for Satisficing Planning”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 38, no. 18, Mar. 2024, pp. 20692-9, doi:10.1609/aaai.v38i18.30056.