1.
Adama Thiandoum. A Litle Note on the Twisted/warped Product Metrics and the Hopf Conjecture. GJSFR [Internet]. 2017 Mar. 15 [cited 2024 May 6];17(F6):39-42. Available from: https://journalofscience.org/index.php/GJSFR/article/view/2121