Stumpff, Karl,  1895-1970, <br/><br/>
Das Uhrwerk des Himmels. 

 - [3. Aufl.]. 
 - 132 pages :  illustrations, maps, diagrams 
<br/><br/><label>Subjects--Chronological Terms: </label><br/>Since 1901 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--1901-<br/>Astronomy.
<br/><br/><label>Subjects--Index Terms: </label>Astronomy