Smarandache, Florentin. “Degrees of Membership > 1 and < 0 of the Elements With Respect to a Neutrosophic OffSet”. Neutrosophic Sets and Systems 12 (June 15, 2016): 3–8. Accessed November 22, 2024. https://fs.unm.edu/nss8/index.php/111/article/view/641.