Ganczarek-Gamrot, Alicja, and Józef Stawicki. “Comparison of Certain Dynamic Estimation Methods of Value at Risk on Polish Gas Market”. Dynamic Econometric Models 17, no. 1 (December 21, 2017): 81–96. Accessed July 19, 2024. https://apcz.umk.pl/DEM/article/view/DEM.2017.005.