Three-dimensional para-Kenmotsu manifolds admitting eta-Ricci solitons. Gulf Journal of Mathematics, [S. l.], v. 11, n. 2, p. 44–52, 2021. DOI: 10.56947/gjom.v11i2.584. Disponível em: https://www.gjom.org/index.php/gjom/article/view/584. Acesso em: 28 oct. 2026.