Križanič, France, and Zan Jan Oplotnik. “Market Changes, Business Cycles and Fluctuations in Electricity Prices - EU Evidence From Germany and Slovenia”. International Journal of Energy Economics and Policy 3, no. 2 (February 23, 2013): 118–126. Accessed July 3, 2022. https://econjournals.com/index.php/ijeep/article/view/413.