Chair of organizing committee 
T. Mannel
Univ. Siegen, Emmy Noether Campus
Walter Flex Str. 3
D-57068 Siegen, Germany
mannel@physik.uni-siegen.de

Conference Secretaries
DESY-Theory Secretariat
D-22603 Hamburg, Germany
theorie.sekretariat@desy.de 
Tel. +49-40-8998-3590 or -2413
Fax +49-40-8998-2777