Kupin, A., I. Vdovychenko, I. Muzyka, and D. Kuznetsov. “Development of an Intelligent System for the Prognostication of Energy Produced by Photovoltaic Cells in Smart Grid Systems”. Eastern-European Journal of Enterprise Technologies, vol. 5, no. 8 (89), Oct. 2017, pp. 4-9, doi:10.15587/1729-4061.2017.112278.