Erschienen in: SMETS, Arno, ed. and others. 33rd European Photovoltaic Solar Energy Conference and Exhibition : proceedings of the international conference. München: WIP, 2017, pp. 610-612. ISSN 2196-0992. ISBN 3-936338-47-7. Available under: doi: 10.4229/EUPVSEC20172017-2AV.2.7