MENGESHA, Z. Unratified Treaties, Unilateral Declarations and Modus Vivendi: Circumstances to be considered to have Effect on State Parties. Bahir Dar University Journal of Law, [S. l.], v. 4, n. 1, p. 176–207, 2022. DOI: 10.20372/bdujol.v4i1.879. Disponível em: https://journals.bdu.edu.et/index.php/bdujl/article/view/879. Acesso em: 4 feb. 2026.