Florentin Smarandache, Maikel Y. Leyva Vázquez, and Mohamed Abdel‑Basset, “Preface - Neutrosophic Sets and Systems, {Special Issue: Neutrosophic and Plithogenic Approaches in Data Science and Multivariate Analysis: Contributions from the IX Ibero-American Biometry Meeting}, Vol. 89, 2025”, Neutrosophic Sets Syst., vol. 89, pp. 1–6, Oct. 2025, Accessed: Oct. 01, 2025. [Online]. Available: https://fs.unm.edu/nss8/index.php/111/article/view/6714