@article{paperid:1040059, author = {Modares, Hamidreza and F. L. Lewis and Naghibi Sistani, Mohammad Bagher}, title = {adaptive optimal control of unknown constrained-input system using policy iteration and neural networks}, journal = {IEEE Transactions on Neural Networks and Learning Systems}, year = {2013}, volume = {24}, number = {10}, month = {October}, issn = {2162-237X}, pages = {1513--1525}, numpages = {12}, keywords = {input constraints; neural networks;optimal control; reinforcement learning; unknown dynamics}, }