Pal, Buddhadev, Santosh Kumar, and Pankaj Kumar. “Einstein Warped Product Spaces on Lie Groups”. CUBO, A Mathematical Journal 24, no. 3 (December 21, 2022): 485–500. Accessed May 15, 2024. https://www.perspectivasdelacomunicacion.cl/ojs/index.php/cubo/article/view/3211.