K. Nagana Gouda, and N.S. Ravikumar. “Pseudo Ricci-Symmetric (LCS)n-Manifolds”. Global Journal of Science Frontier Research 16, no. F6 (May 15, 2016): 71–77. Accessed May 6, 2024. https://journalofscience.org/index.php/GJSFR/article/view/1922.