1. The influence of the short wavelength features of the earth's gravity field on low orbiting satellites;Agajelu,1976
2. Long term consistency in positions of sites determined from Doppler satellite observations;Anderle,1975
3. Polar motion determined by Doppler satellite observations;Anderle;Bulletin Geodesique,1976
4. Point positioning concept using precise ephemeris;Anderle,1976
5. Comparison of Doppler and optical pole position over twelve years;Anderle,1976