PERKTAS, S. Y.; KILIÇ, E.; KELES, S. Hypersurfaces of Lorentzian para-Sasakian manifolds. MATHEMATICA SCANDINAVICA, [S. l.], v. 109, n. 1, p. 5–21, 2011. DOI: 10.7146/math.scand.a-15174. Disponível em: https://www.mscand.dk/article/view/15174. Acesso em: 3 may. 2024.