S. Borekci, E. Kandemir, and A. Kircay, “A Simpler Single-Phase Single-Stage Grid-Connected PV System with Maximum Power Point Tracking Controller”, ELEKTRON ELEKTROTECH, vol. 21, no. 4, pp. 44–49, Jul. 2015, doi: 10.5755/j01.eee.21.4.12782.