M. Schmid, N. Burch, M. Lanctot, M. Moravcik, R. Kadlec, and M. Bowling, “Variance Reduction in Monte Carlo Counterfactual Regret Minimization (VR-MCCFR) for Extensive Form Games Using Baselines”, AAAI, vol. 33, no. 01, pp. 2157-2164, Jul. 2019.