Ehlers, J. (Ed.) Balescu, R. <br/><br/>
Lecture notes in physics- 7 

 - Berlin  Springer-Verlag  1971 
 - 181p. 
<br/><br/><label>ISBN: </label>3540054189 
<br/><br/><label>Dewey Class. No.: </label>530  / L39