BROWN, R.; PORTE, T. Mathematical Structure: Knowledge, Representation and Interpretation. Theoria et Historia Scientiarum, [S. l.], v. 6, n. 2, p. 39–53, 2007. DOI: 10.12775/ths.2002.021. Disponível em: https://apcz.umk.pl/THS/article/view/ths.2002.021. Acesso em: 18 jul. 2024.