The basic arithmetic operations on fuzzy numbers and new approaches to the theory of fuzzy numbers under the classification of space images. Mathematical Machines and Systems, [S. l.], n. 3, p. 49–59, 2020. DOI: 10.34121/1028-9763-2020-3-49-59. Disponível em: https://www.j-mms.de/index.php/mms/article/view/2020-3-a3. Acesso em: 11 aug. 2026.