Bjarne Andresen, NBI, U Copenhagen, Denmark
andresen@fys.ku.dk, ph. +45-3532 0470
Gitte Michelsen
Niels Bohr Institute
University of Copenhagen
Universitetsparken 5
DK-2100 Copenhagen Ø
Denmark
gittem@fys.ku.dk
ph. +45-3532 0438
fax +45-3532 0460