Geometrical optimization for a photovoltaic installation equipped with flat reflectors based on plane of array estimationsChristine Abdel Nour, Anne Migan-Dubois, Jordi Badosa, Vincent Bourdin, Claude Marchand and Tilda AkikiEPJ Photovolt., 11 (2020) 1DOI: https://doi.org/10.1051/epjpv/2019010