Pactum De Negotiando and Pactum De Contrahendo as International Obligations in the Present International Law. Polish Yearbook of International Law, [S. l.], v. 40, p. 39–59, 2021. DOI: 10.24425/pyil.2021.138428. Disponível em: https://czasopisma.inp.pan.pl/index.php/pyil/article/view/2752. Acesso em: 3 oct. 2025.