Muhammad, B. .; Prasad, R. .; Nisi2, M. .; Menichetti2, F. .; Cianca, E. .; Mennella, A. .; Gagliarde, G. .; Marenchino, D. Maintenance of the Photovolatic Plants Using UAV Equipped With Low-Cost GNSS RTK Receiver. JMM 2018, 14, 25-48.