1. University of Applied Sciences Technikum Vienna,Institute for Renewable Energy,Vienna,Austria
2. University Trás-osMontes & Alto Douro,Department of Engineering CPES-INESCTEC UTAD,Vila Real,Portugal
3. University of Trás-os-Montes and Alto Douro UTAD,Department of Engineering,Vila Real,Portugal
4. Reisenbauer Solutions GmbH,Vienna,Austria