Periodicals, Proceedings, Books, Activities
Part of the Astronomy and Astrophysics Abstracts book series (AAA, volume 17)
KeywordsAstronomical Society Observatory Report Royal Greenwich Observatory International Astronomical Union Royal Astronomical Society
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© Springer-Verlag Berlin Heidelberg 1976