M. Hossein Mehraban Jahromi, Hossein Dehghani Tafti, S. Mehdi Hosseini, Ahvand Jalali, and Mehran Keivanimehr. “Maximum Power Point Tracking of a Network-Connected Photovoltaic System Based on Gravity Search Algorithm and Fuzzy Logic Controller”. Journal of Solar Energy Research Updates, vol. 7, Jan. 2020, pp. 52-63, doi:10.31875/2410-2199.2020.07.6.