YASAR, Erol; CÖKEN, A. Ceylan; YÜCESAN, Ahmet. Lightlike hypersurfaces in semi-Riemannian manifold with semi-symmetric non-metric connection. MATHEMATICA SCANDINAVICA, [S. l.], v. 102, n. 2, p. 253–264, 2008. DOI: 10.7146/math.scand.a-15061. Disponível em: https://tidsskrift.dk/math/article/view/15061. Acesso em: 13 aug. 2026.