Scognamiglio, Alessandra and Berni, Antonio and Frontini, Francesco and Maturi, Laura and Polo Lopez, Cristina Silvia (2012) The Complex Dialogue Between Photovoltaics and Pre-Existing: Starting Point for a Discussion. In: Proceedings of the 27th European Photovoltaic Solar Energy Conference and Exhibition 27th EU PVSEC European Photovoltaic Solar Energy Conference and Exhibition, September 24 -28, 2012, Frankfurt, Germany .