Hockey, Thomas <br/><br/>
Biographical Encyclopedia of Astronomers [electronic resource]   
by Thomas Hockey et.al 
 - New York  Springer  2007 
<br/><br/> http://dx.doi.org/10.1007/978-0-387-30400-7 
<br/><br/><label>ISBN: </label>9780387304007 
<br/><br/><label>Dewey Class. No.: </label>520.922  / (e-book)