Florentin Smarandache. “Horizontal and Vertical Generalized N-Fold Algebra: Formal Construction and Applications in Multi-Dimensional Modeling ”. Neutrosophic Sets and Systems 98 (April 25, 2026): 170–175. Accessed June 1, 2026. https://fs.unm.edu/nss8/index.php/111/article/view/7549.