1. S. P. Philipps, A. W. Bett, K. Horowitz and S. Kurtz, “CPV report 1.2,” Fraunhofer ISE and NREL, TP-6A20-63916 (2016)
2. M. Simone, “Fotovoltaico a Concentrazione: le Celle Multigiunzione” Ph.D. thesis, University of Padova, 2013.
3. M. Schachinger, “pvXchange module price index November 2016: Red light, green light”, pv-magazine (2017)
4. www.atemenergia.it
5. A. Saccà, “Designing, Manufacturing and Testing of a Nonimaging Optics particularly for Concentrated Photovoltaics. TwinFocus: a case study.” Ph.D. thesis, University of Padova, 2015.