Group theoretical methods in physics / seventh International Colloquium and Integrative Conference on Group Theory and Mathematical Physics, held in Austin, Texas, September 11-16, 1978 ; edited by W. Beiglbock, A. Bohm and E. Takasugi. International Colloquium and Integrative Conference on Group Therapy and Mathematical Physics (7th : 1978 : Austin) Beiglbock, W., 1939- Bohm, A. Takasugi, E. Group theory Congresses. Mathematical physics Congresses. 530 19 BEG Includes bibliographies. Berlin : Springer-Verlag, 1979. 1979. 1979 Text xiii, 540 ; eng Lecture notes in physics ; 94