DWIVEDI, M. K.; JUN, J.-B.; TRIPATHI, M. M. On endo curvature tensor of a contact metric manifold. Tamkang Journal of Mathematics, [S. l.], v. 39, n. 2, p. 177–186, 2008. DOI: 10.5556/j.tkjm.39.2008.28. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/28. Acesso em: 21 nov. 2024.