@ARTICLE{Grondman2012EfficientModelLearning, author = {Grondman, I. and Vaandrager, M. and Bu\c{s}oniu, L. and Babu\v{s}ka, R. and Schuitema, E.}, title = {Efficient Model Learning Methods for Actor--Critic Control}, journal = {{IEEE} Transactions on Systems, Man, and Cybernetics, Part {B}: Cybernetics}, year = {2012}, volume = {42}, number = {3}, pages = {591--602} }