TY - BOOK ED - International Colloquium on Group Theoretical Methods in Physics (9th : 1980 : Mexico) ED - Wolf, Kurt Bernardo TI - Group theoretical methods in physics: proceedings of the IX International Colloquium held at Cocoyoc, Mexico, June 23-27, 1980 SN - 038710271X PY - 1980/// CY - Berlin PB - Springer-Verlag KW - Group theory KW - Congresses KW - Mathematical physics ER -