WOŁOWIEC, Tomasz. Potential and Possible Ways of Harmonizing the Personal Income Taxation Process. Comparative Economic Research. Central and Eastern Europe, [S. l.], v. 21, n. 3, p. 109–130, 2018. DOI: 10.2478/cer-2018-0022. Disponível em: https://www.czasopisma.uni.lodz.pl/CER/article/view/3644. Acesso em: 8 dec. 2025.