Qinglai Wei Derong Liu 0001 Qiao Lin 0003 Ruizhuo Song Discrete-Time Optimal Control via Local Policy Iteration Adaptive Dynamic Programming. 3367-3379 2017 47 IEEE Trans. Cybern. 10 https://doi.org/10.1109/TCYB.2016.2586082 https://www.wikidata.org/entity/Q50605710 db/journals/tcyb/tcyb47.html#WeiLLS17