WIŚNIEWSKI, Tomasz. CONSTRUCTION AND PROPERTIES OF VOLATILITY INDEX FOR WARSAW STOCK EXCHANGE. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 15, n. 1, p. 218–223, 2014. Disponível em: https://qme.sggw.edu.pl/article/view/3663. Acesso em: 24 kwi. 2025.