Pahan, Sampa. “\( \eta \)-Ricci Solitons on 3-Dimensional Trans-Sasakian Manifolds”. CUBO, A Mathematical Journal 22, no. 1 (April 17, 2020): 23–37. Accessed May 16, 2024. https://www.perspectivasdelacomunicacion.cl/ojs/index.php/cubo/article/view/2254.