1. Observation of twenty-seventh and twenty-eighth order gravity coefficients based on Doppler observations;Anderle;J. Astronaut. Sci.,1968
2. Investigations related to the establishment of world geodetic system;Badekas,1969
3. Satellite geodesy using laser range measurements only;Bender;J. Geophys. Res.,1968
4. Bjerhammer, A., , , On a coalescent world geodetic system, , published by USA Engineer Topographic Laboratories Research Institute for Geodetic Sciences, , July 1967, . (Also see Tellus, 21, 517–548, 1969.)
5. On the energy integral for satellites;Bjerhammar,1968