1. European Photovoltaic Industry Association Global Market Outlook For Photovoltaics 2013-2017 Technical report Brussels, Belgium 2013
2. Wesoff E Germany's PV Generation Peaked at 23.4 Gigawatts on June 6 2013 http://www.greentechmedia.com/articles/read/germanygenerated-23.4-gigawatts-from-pv-on-june-6
3. Renewables International Germany sets record for peak solar power production 2012 http://www.renewablesinternational.net/germany-sets-record-forpeak-solar-power-production/150/510/38570/
4. Life cycle greenhouse gas emissions of crystalline silicon photovoltaic electricity generation;Hsu;Journal of Industrial Ecology,2012
5. Life cycle greenhouse gas emissions of thin-film photovoltaic electricity generation;Kim;Journal of Industrial Ecology,2012