KARPIO, K. Index of Central and East European securities quoted at Warsaw Stock Exchange - WIG-CEE. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 13, n. 2, p. 60–72, 2012. Disponível em: https://qme.sggw.edu.pl/article/view/3536. Acesso em: 3 lip. 2024.