Özgür, Cihan, and Uday Chand De. “On Some Classes of Submanifolds Satisfying Chen’s Equality in an Euclidean Space”. Italian Journal of Pure and Applied Mathematics 28 (July 19, 2011): 109–116. Accessed July 18, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/6007.