1. Fincke , W. H. Strapdown Inertial Sensing Unit Rotation (SISUR), A New Approach to Inertial Navigation PLANS 1978
2. Levinson , E. San Giovanni C. Laser Gyro Potential for Long Endurance Marine Navigation PLANS 1980
3. Schwartz , B. Strapdown System Errors with Dynamic Inputs PLANS 1982
4. Hood , J. L. A Design Philosophy for a Marine Inertial Navigation System 15th J.S.D.E. for Inertial Systems, Philadelphia, PA
5. Levinson , E. San Giovanni , C. Schwartz , B. A Ring Laser Strapdown Marine Navigator 15th J.S.D.E. for Inertial Systems, Philadelphia, PA