GOLKA, Marian. Predicting - between the Need and Inability. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 5, n. 11, p. 7–19, 2017. DOI: 10.18559/SOEP.2017.11.1. Disponível em: https://www.journals.ue.poznan.pl/soep/article/view/3742. Acesso em: 22 sep. 2026.