Rafał Czapaj, Jacek Kamiński, Pablo Benalcazar. “Evaluation of the Application of a Forecasting Model Using the Classic Least Squares Method in Forecasting Daily 15-Minute Peak Power Demand in the National Power System”. Acta Energetica, no. 01, Mar. 2019, pp. 45-51, https://www.actaenergetica.org/index.php/journal/article/view/33.