1. et al. Spacecraft formation flying using an innovative autonomous control system (AUTOCON) environment. Proceedings of the AIAA Guidance, Navigation, and Control Conference, New Orleans, LA, 1997; 657-666.
2. Autonomous navigation for the new millennium program Earth Orbiter 1 mission. Proceedings of the AIAA Guidance, Navigation, and Control Conference, New Orleans, LA, 1997; 612-617.
3. et al. The new millennium formation flying optical interferometer. Proceedings of the AIAA Guidance, Navigation, and Control Conference, New Orleans, LA, 1997; 650-656.
4. Formation control strategies for a separated spacecraft interferometer. Proceedings of the American Control Conference, San Diego, CA, 1999; 4142-4147.
5. Optimization of geosynchronous spacecraft constellations for interferometric earth imaging. AAS Astrodynamics Specialist Conference, Boston, MA, 1998; AIAA-98-4379.