Hannu Karttunen, Pekka Kröger, Heikki Oja, Markku Poutanen, Karl Johan Donner <br/><br/>
Fundamental Astronomy 

 -  Springer  Springer  2017 
<br/><br/><label>ISBN: </label>9783662530450 
<br/><br/><label>Source: </label>EBOOK