Infante, Guillermo, Anders Jonsson, and Vicenç Gómez. 2022. “Globally Optimal Hierarchical Reinforcement Learning for Linearly-Solvable Markov Decision Processes”. Proceedings of the AAAI Conference on Artificial Intelligence 36 (6):6970-77. https://doi.org/10.1609/aaai.v36i6.20655.