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The Patrick Moore Practical Astronomy Series Richard Harshaw
The Patrick Moore Practical Astronomy Series Grant Privett
Space Exploration David M. Harland
uni auditorium – Audio Harald Lesch
Springer Praxis Books Jay B. Holberg
Space Exploration Michael D. Shayler, Shayler David, Tim Furniss
Astronomers‘ Observing Guides Martin Mobberley
Springer Praxis Books Alessandra Celletti, Ettore Perozzi
Patrick Moore’s Practical Astronomy Series James Mullaney
Welcher Stern ist das? Michael Vogel
Astronomers‘ Observing Guides Steven Coe
Space Exploration Brian Harvey
Space Exploration Ben Evans
Space Invaders Michel van Pelt
The Patrick Moore Practical Astronomy Series Michael Gainer
Springer Praxis Books Martin A. Ratcliffe
Space Exploration Anthony Young
The Invisible Universe Gerrit Verschuur
Astronomers‘ Observing Guides Richard Jakiel, Wolfgang Steinicke
Astronomers‘ Universe A.J. Meadows
Contact with Alien Civilizations Michael Michaud