1. Bona , B. E. R. J. Smay “Operational Recalibration of Ship's Inertial Navigation Systems (SINS)” Paper presented at Winter Convention on Military Electronics, IRE, 1962-3
2. “Stellar-Inertial Navigation Applied to Cruise Vehicles”;Blumhagen;IEEE Transactions on Aerospace and Navigational Electronics,September 1963
3. Brown , R. G. D. T. Friest “Optimization of a Hybrid Inertial Solar-Tracker Navigation System” 1964
4. “Combined Doppler Radar and Inertial Navigation Systems”;Duncan;Proceedings, National Electronics Conference,1958