1. Study of an integrated attitude sensing system and development of a prototype;Anstett,1979
2. The Astrometry Satellite Hipparcos;Beekmans;ESA Journal,1980
3. Tests evaluation of a high performance pulse rebalanced gyro for strapdown IMU applications;Bendett;Navigation: J. Inst, of Navigation,1975
4. Estimation of the local attitude of orbiting spacecraft;Bryson;Automatica,1971
5. Data processing for a high-accuracy star mapper;Carlucci,1981