Heintz, Wulff D. <br/><br/>
Double stars / 
Wulff D. Heintz 
 - Dordrecht :  D. Reidel Publishing Company,  1978 
 - ix, 174 p. :  ill. ;  24 cm. 
 - Geophysics and astrophysics monographs ;  v. 15 .
<br/><br/> Revised translation of Doppelsterne published in 1971  Includes index 
<br/><br/>Bibliography : p.164-170 
<br/><br/><label>ISBN: </label>9027708851 902770886X  pbk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stars, Double