1. The observation of three centimeter radiation from astronomical objects with a ruby maser;Alsop;Columbia Radiation Laboratory Special Technical Report,1961
2. Davidson, A. W. (1970). Private communication.
3. Observations of the continuum emission from Venus, Mars, Jupiter, and Saturn at 21.2-cm wavelength;Davies;Planet. Space Sci.,1966
4. Measurements of Mars at λ 3.75 cm from February to June, 1965;Dent;Astrophys. J.,1965
5. 10 cm observation of Venus in 1961;Drake;Publ. Nat. Radio Astron. Obs.,1962