ID:DA08103470
Copenhagen. Universitet. Astonomisk observatorium
Copenhagen University Observatory
Københavns universitet. Observatory
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Copenhagen University Observatory : Royal Greenwich Observatory : Instituto y Observatorio de Marina 1985-
No. 1-3 , No. 8
Available at 1 libraries
jointly organised by the European Space Agency, Copenhagen University Observatory & Observatoire de Strasbourg
European Space Agency [1982] ESA SP 177
Available at 3 libraries