1. “B-l Navigation System Mechanization,”;Bergeson,1974
2. Inertial Navigation System Analysis;Britting,1971
3. “General Questions on Kalman Filtering in Navigation Systems,”;Brock,1970
4. Inertial Navigation Systems;Broxmeyer,1964
5. “Kalman Filter Design for an Inertial Navigation System Aided by Non-Synchronous Navigation Satellite Constellations,”;Butler,1974