TY - BOOK AU - Dittrich Walter ed. ED - Symposium on Particle and fields( 1977 : Tubingen University ) ED - TI - Recent developments in particle and field theory: proceedings U1 - 539.721 PY - 1979/// CY - Braunschweig PB - Wiesbaden, Vieweg KW - Field theory KW - Nuclear physics ER -