Forschungszentrum Jülich, IKP I
52425 Jülich, Germany

d.grzonka@fz-juelich.de
Phone and fax:  (+49) 2461 61-4402 and 61-3930
Phone at CERN: (+41) 22 767 1758 and 7 9813

CERN Office: Building 600 R-010, phone: 767-1758
CERN Experiment Barrack:  Building 193, phone: 767-9813