ACETO, Luca; ÉSIK, Zoltán; INGÓLFSDÓTTIR, Anna. Equational Theories of Tropical Semirings. BRICS Report Series, [S. l.], v. 8, n. 21, 2001. DOI: 10.7146/brics.v8i21.21682. Disponível em: https://tidsskrift.dk/brics/article/view/21682. Acesso em: 5 dec. 2025.