1.
Sarma A, Smarandache F, Kroumov V. Neutrosophic Crisp Sets & Neutrosophic Crisp Topological Spaces. Neutrosophic Sets Syst. 2014;2:25-30. Accessed February 10, 2025. https://fs.unm.edu/nss8/index.php/111/article/view/206