Aschenbach Bernd <br/><br/>
The Invisible Sky  Rosat and the age of X-ray Astronomy 
/ by Bernd Aschenbach 
 - 1st ed. 
 - New York  Copernicus  1998 
 - 175p. 
<br/><br/><label>ISBN: </label>0387949283 
<br/><br/><label>Dewey Class. No.: </label>522.6  / ASC/T