D. Sigthorsson, M. Oppenheimer, und D. Doman. AIAA Guidance, Navigation, and Control Conference, Toronto, CA, American Institute of Aeronautics and Astronautics, (August 2010)
Z. Khan, und S. Agrawal. Proceedings of the 2007 American Control Conference, Seite 5284--5289. New York, US-NY, Institute of Electrical and Electronics Engineers, (Juli 2007)
K. Wise. Proceedings of the 34th Conference on Decision and Control, December 1995, New Orleans, US-LA, 1, Seite 751--756. New York, US-NY, IEEE Institute of Electrical and Electronics Engineers, (1995)