ACETO, L.; GROOTE, J. F. A Complete Equational Axiomatization for MPA with String Iteration. BRICS Report Series, [S. l.], v. 2, n. 28, 1995. DOI: 10.7146/brics.v2i28.19930. Disponível em: https://tidsskrift.dk/brics/article/view/19930. Acesso em: 27 apr. 2024.