Dabney, W., A. Barreto, M. Rowland, R. Dadashi, J. Quan, M. G. Bellemare, and D. Silver. “The Value-Improvement Path: Towards Better Representations for Reinforcement Learning”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 8, May 2021, pp. 7160-8, doi:10.1609/aaai.v35i8.16880.