1980 IAPPP Symposium
1980 IAPPP Symposium Summary
1980 IAU theory of nutation - The final report of the IAU Working Group on Nutation
1980 International Optical Computing Conference, Washington, DC, April 8-11, 1980, Proceedings. Books 1 & 2
1980 January 11 (meeting)
1980 January 11 meeting of the Royal Astronomical Society
1980 LB
1980 LB
1980 Light Curve of II Pegasi
1980 March 14 (meeting)
1980 March 14 meeting of the Royal Astronomical Society
1980 May 9 (meeting)
1980 May 9 meeting of the Royal Astronomical Society
1980 November 14 (meeting)
1980 November 14 meeting of the Royal Astronomical Society
1980 October 10 (meeting)
1980 October 10 meeting of the Royal Astronomical Society
1980 PA
1980 PA
1980 PA