?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.solener.2015.05.033&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=F.&rft.au=Spertino%2C+F.&rft.aulast=Spertino&rft.pages=313-326&rft.issn=0038-092X&rft.atitle=A+power+and+energy+procedure+in+operating+photovoltaic+systems+to+quantify+the+losses+according+to+the+causes&rft.title=Solar+Energy&rft.date=1+August+2015&rft.volume=118&rft.genre=article