PALSBERG, Jens; SCHWARTZBACH, Michael I. Three Discussions on Object-Oriented Typing. DAIMI Report Series, [S. l.], v. 20, n. 362, 1991. DOI: 10.7146/dpb.v20i362.6593. Disponível em: https://tidsskrift.dk/daimipb/article/view/6593. Acesso em: 8 dec. 2025.