DE, U. C. Certain results on N(k)-contact metric manifolds. Tamkang Journal of Mathematics, [S. l.], v. 49, n. 3, p. 205-220, 2018. DOI: 10.5556/j.tkjm.49.2018.2506. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/2506. Acesso em: 24 jun. 2021.