Dobsky, Karlheinz, <br/><br/>
Herz der Zeit :  vom Schattenstab zur Atomuhr / 
Karlheinz Dobsky. 
 - iv, 31 pages, v - viii :  illustrations ;  15 cm 
 - Lux-Lesebogen ;  250 : Technik .
 - Kleine Bibliothek des Wissens Lux-Lesebogen ;  250. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time--Social aspects--History.<br/>Time measurements--History.
<br/><br/><label>Subjects--Index Terms: </label>History Germany Time timekeeping Time