PAJOR, Anna. A Note on the UEK Method. Regional Barometer. Analyses & Prognoses, [S. l.], v. 15, n. 3, p. 7–10, 2018. DOI: 10.56583/br.420. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/420. Acesso em: 10 apr. 2025.