Group theoretical methods in physics :  proceedings of the IX International Colloquium held at Cocoyoc, Mexico, June 23-27, 1980 / 
edited by Kurt Bernardo Wolf 
 - Berlin :  Springer-Verlag,  1980 
 - xii, 629 p. :  ill. ;  25 cm. 
 - Lecture notes in physics  v.135 .
<br/><br/><label>ISBN: </label>038710271X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Group theory--Congresses<br/>Mathematical physics--Congresses