1. L. Barra, S. Catalanotti, F. Fontana and F. Lavorante, An analytical method to determine the optimal size of a photovoltaic plant. Accepted for publication in Solar Energy.
2. Statistical approach to long term performances of photovoltaic systems;Bartoli;Revue de Physique Appliquèe,1983
3. Statistical correlation between daily and monthly averages of solar radiation data;Bartoli;Nuovo Climento,1978