Symposium of institute of mathematical science(Madras,1965) <br/><br/>
Symposia on theoretical physics  V.4 
ed. by Alladi Ramakrishnan 
 - New york  Plenum Press  1967 
 - xi, 218p. 
<br/><br/><label>Dewey Class. No.: </label>530.106  / N66.4 R