1. The Net Team, c/o Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2 D-8046 Garching bei München, Federal Republic of Germany
2. UKAEA/EURATOM Fusion Association Culham Laboratory, Abingdon, Oxon OX 14 3DB, United Kingdom
3. Fusion Association, Culham Laboratory Abingdon, Oxon OX14 3DB, United Kingdom