@InProceedings{ BarrySaftey12, title = "Safety Verification of Reactive Controllers for UAV Flight in Cluttered Environments Using Barrier Certificates", booktitle = "Proceedings of the 2012 IEEE International Conference on Robotics and Automation (ICRA)", author = "Andrew J. Barry and Anirudha Majumdar and Russ Tedrake", year = "2012" }