PALSBERG, J.; WAND, M.; O’KEEFE, P. Type Inference with Nonstructural Subtyping. BRICS Report Series, [S. l.], v. 2, n. 33, 1995. DOI: 10.7146/brics.v2i33.19936. Disponível em: https://tidsskrift.dk/brics/article/view/19936. Acesso em: 26 apr. 2024.