Life cycle assessment study of a 4.2kWp stand-alone photovoltaic system García-Valverde, R. ; Miguel, C. ; Martínez-Béjar, R. ; Urbina, A. Abstract Publication: Solar Energy Pub Date: September 2009 DOI: 10.1016/j.solener.2009.03.012 Bibcode: 2009SoEn...83.1434G