FLORENTIN SMARANDACHE. Introduction to the Symbolic Plithogenic Algebraic Structures (revisited). Neutrosophic Sets and Systems, [S. l.], v. 53, p. 653–665, 2023. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/3250.. Acesso em: 24 jun. 2025.