1. PV Technology Laboratory, FOSS Research Centre for Sustainable Energy, Department of Electrical and Computer Engineering University of Cyprus Nicosia 1678 Cyprus
2. Sandia National Laboratories Albuquerque NM 87185 USA
3. SolarCentury 90 Union Street London SE1 0NW UK
4. Gantner Instruments GmbH Montafonerstraße 4 Schruns 6780 Austria