QUAGLIA, P. On the Finitary Characterization of pi-Congruences. BRICS Report Series, [S. l.], v. 4, n. 52, 1997. DOI: 10.7146/brics.v4i52.19273. Disponível em: https://tidsskrift.dk/brics/article/view/19273. Acesso em: 22 dec. 2024.