ŁUCZYŃSKI, Wiesław. Applying Cross-Spectral Analysis in Research on the Dynamics of the Dax Share Index. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 3, n. 9, p. s. 19–56, 2015. DOI: 10.18559/SOEP.2015.9.2. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3995. Acesso em: 3 sep. 2026.