PHILIPS, D. Explicit morphisms in the Galois-Tukey category. Pittsburgh Interdisciplinary Mathematics Review, Pittsburgh, v. 3, p. 53–81, 2025. DOI: 10.5195/pimr.2025.57. Disponível em: https://pimr.pitt.edu/pimr/article/view/57. Acesso em: 17 jul. 2025.