@techreport{TabakovicFechnerLeonhartsberger,
  author    = {Tabakovic, Momir and Fechner, Hubert and Leonhartsberger, Kurt},
  title     = {National Survey Report of PV Power Applications in Austria 2016},
  organization    = {IEA - International Energy Agency},
  subject      = {Photovoltaics},
  language  = {en}
}
@techreport{TabakovicFechnerLeonhartsberger,
  author    = {Tabakovic, Momir and Fechner, Hubert and Leonhartsberger, Kurt},
  title     = {National Survey Report of PV Power Applications in Austria 2015},
  subject      = {Photovoltaics},
  language  = {en}
}