Carrasquel S, Coronado D, Rodríguez R, Tineo L. Fuzzy data management: Type 2 and Type 3 attributes in relational databases. Publ.Cienc.Tecnol [Internet]. 2018 Nov. 5 [cited 2026 Oct. 4];12(2):83-95. Available from: https://mail.revistas.uclave.org/index.php/pcyt/article/view/1040