Gaina, R. D., S. M. Lucas, and D. Pérez-Liébana. “Tackling Sparse Rewards in Real-Time Games With Statistical Forward Planning Methods”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 33, no. 01, July 2019, pp. 1691-8, doi:10.1609/aaai.v33i01.33011691.