1. American Ephemeris and Nautical Almanac, for the years 1962 through 1966 U. S. Government Printing Office
2. Serie Bureau International de l'Heure
3. Atmospheric Tides and Oscillations
4. COSPAR International Reference Atmosphere, 1965 Compiled by COSPAR Working Group IV, Model 2 133 146 North-Holland
5. Earth deceleration from ancient solar eclipses;Curott;Astr. J., N. Y,1966