CÁCCAMO, M. J.; WINSKEL, G. A Higher-Order Calculus for Categories. BRICS Report Series, [S. l.], v. 8, n. 27, 2001. DOI: 10.7146/brics.v8i27.21687. Disponível em: https://tidsskrift.dk/brics/article/view/21687. Acesso em: 27 apr. 2024.