KUKULSKI, Ziemowit. Eliminating Double Taxation of Income from Cross-Border Services in the Digital Era from the UN Model Perspective. Acta Universitatis Lodziensis. Folia Iuridica, Poland, v. 110, p. 65–78, 2025. DOI: 10.18778/0208-6069.110.04. Disponível em: https://www.czasopisma.uni.lodz.pl/Iuridica/article/view/24818. Acesso em: 25 may. 2026.