WANG, W. Nullity Condition on Trans-Sasakian 3-Manifolds. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 75, n. 10, p. 1410–1418, 2022. DOI: 10.7546/CRABS.2022.10.02. Disponível em: https://proceedings.bas.bg/index.php/cr/article/view/171. Acesso em: 28 nov. 2022.