TRZPIOT, G.; GANCZAREK-GAMROT, A.; GLENSK, B. RISK AND RETURNS ON POLISH POWER EXCHANGE AND EUROPEAN ENERGY EXCHANGE. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 15, n. 1, p. 183–191, 2014. Disponível em: https://qme.sggw.edu.pl/article/view/3660. Acesso em: 21 lis. 2024.