Ehlers, Jurgen., ed. <br/><br/>
RELATIVITY theory and astrophysics 

 - United States  American Mathematical Society  1967 
 - xv, 289 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics-relativity
<br/><br/><label>Dewey Class. No.: </label>530.11  / REL