NIELSON, F.; NIELSON, H. R. Constraints for Polymorphic Behaviours of Concurrent ML. DAIMI Report Series, [S. l.], v. 24, n. 496, 1995. DOI: 10.7146/dpb.v24i496.7024. Disponível em: https://tidsskrift.dk/daimipb/article/view/7024. Acesso em: 8 may. 2024.