1. Alegre, P., Blair, D.E., Carriazo, A.: Generalized Sasakian-space-forms. Israel J. Math. 14, 157–183 (2004)
2. Alegre, P., Carriazo, A.: Structures on generalized Sasakian-space-forms. Differ. Geom. Appl. 26, 656–666 (2008)
3. Asperti, A.C., Lobos, G.A., Mercuri, F.: Pseudo-parallel immersions of a space forms. Mat. Contemp. 17, 59–70 (1999)
4. Asperti, A.C., Lobos, G.A., Mercuri, F.: Pseudo-parallel submanifolds of a space forms. Adv. Geom. 2, 57–71 (2002)
5. Belkhelfa, M., Deszcz, R., Verstraelen, L.: Symmetry properties of generalized Sasakian-space-forms. Soochow J. Math. 31, 611–616 (2005)