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2by Beer, Jürg, Baumgartner, Stephan T., Dittrich-Hannen, Beate, Hauenstein, Jürg, Kubik, Peter, Lukasczyk, Christian, Mende, Werner, Stellmacher, Rita, Suter, MartinGet access
Published in International Astronomical Union Colloquium (1994)
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Article in Journal/Newspaper