TY - BOOK AU - Janner A Ed. AU - Boon M Ed. AU - Janssen T Ed. ED - Colloquim on group theoretical methods in physics (1975 : Nijmeen) TI - Proceeding on group theoretical methods in physics T2 - Lecture notes in Physics; 50 U1 - B270bCp1,N75, L6 PY - 1976/// CY - Berlin PB - Springer-Verlag KW - Mathematical Physics KW - Groups theory ER -