SABU SEBASTIAN; FLORENTIN SMARANDACHE. Extension of Crisp Functions on Neutrosophic Sets. Neutrosophic Sets and Systems, [S. l.], v. 17, p. 88–92, 2017. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/677.. Acesso em: 19 apr. 2025.