Analysis of the legal effect of mediation clause prior to arbitration agreement—— Foundation of a Tiered review framework based on the theory of admissibility. Lex localis - Journal of Local Self-Government, [S. l.], v. 23, n. 8, 2025. DOI: 10.52152/800136. Disponível em: https://lex-localis.org/index.php/LexLocalis/article/view/787-456. Acesso em: 3 oct. 2025.