1. EdenhoferO Pichs‐MadrugaR SokonaY SeybothK MatschossP KadnerS ZwickelT EickemeierP HansenG SchlömerS vonStechowC.IPCC 2011: Summary for Policymakers. In: IPCC Special Report on Renewable Energy Sources and Climate Change Mitigation.2011.
2. AlsemaE FraileD FrischknechtR FthenakisV HeldM KimH PölzW RaugeiM deWild ScholtenM.Methodology guidelines on life cycle assessment of photovoltaic electricity IEA PVPS Rep. 2011.
3. European Union.Article 2(1)(a) in Directive 2012/19/EU of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE) 2012. [Online].http://eur‐lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2012:197:FULL:EN:PDF[accessed on June 2015].
4. Article 11.6 SB 1020 (California Photovoltaic Panel Collection and Recycling Act of 2014) 2014. [Online].http://www.leginfo.ca.gov/pub/13‐14/bill/sen/sb_1001‐1050/sb_1020_bill_20140214_introduced.html[accessed on June 2015].
5. First Solar.Sustainability metrics 2014. [Online].http://www.firstsolar.com/en/about‐us/corporate‐responsibility/sustainability‐metrics[accessed on June 2015].