About the construction of fuzzy inner product. Baghdad Science Journal, Iraq, Baghdad, v. 3, n. 3, p. 456–464, 2006. DOI: 10.21123/bsj.2006.726. Disponível em: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/726.. Acesso em: 19 jun. 2025.