PeerJ Author 135 Points Contributions by role Author 135 Contributions by subject area Artificial Intelligence Autonomous Systems Abdelmounaim Khallouq PeerJ Author Summary Artificial Intelligence Autonomous Systems Optimization Theory & Computation Robotics Theory & Formal Methods PeerJ Contributions Articles 1 April 13, 2021 Observer based robust H∞ fuzzy tracking control: application to an activated sludge process Abdelmounaim Khallouq, Asma Karama, Mohamed Abyad https://doi.org/10.7717/peerj-cs.458