Kopal, Zdenek,  1914-1993 <br/><br/>
The effects of reflection upon light and velocity curves of close binary systems / 
Zdenek Kopal. 
 - U.S.A. :  American Philosophical Society,  1943. 
 - 352 - 363 p. ;  26 cm. 
<br/><br/> Harvard reprint series II-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Binary systems (Metallurgy)
<br/><br/><label>LC Class. No.: </label>SPE-B 06116