Symposium of institute of mathematical sciences(4  Madras,1966) <br/><br/>
Symposia on theoretical physics and mathematics  V.6 
ed. by Alladi Ramakrishnan 
 - New york  Plenum Press  1968 
 - xii, 294p. 
<br/><br/><label>Dewey Class. No.: </label>530.106  / N66.6 "R"