Heidmann, J.. <br/><br/>
Relativistic Cosmology /  

 - 1st ed /  
 - Berlin 33 :   Springer-Verlag ,   1980 
 - p.168 :  
<br/><br/><label>ISBN: </label>3-540-10138-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>CN  / M0