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Fundamental Astronomy Hardcover – 18 Nov 2016 By Hannu Karttunen (editor), Pekka Kröger Heikki Oja
Fundamental Astronomy Hardcover – 18 Nov 2016 By Hannu Karttunen (editor), Pekka Kröger Heikki Oja
Fundamental Astronomy Hannu Karttunen Pekka Kröger Heikki Oja Markku Poutanen Karl Johan Donner