1. Bejancu, A.: CR-submanifolds of a Kähler manifold I. Proc. Am. Math. Soc. 69, 135–142 (1978)
2. Blair, D.E.: Riemannian Geometry of Contact and Symplectic Manifolds, Progress in Mathematics, vol. 203. Birkhäuser, Boston (2002)
3. Cecil, T.E., Ryan, P.J.: Focal sets and real hypersurfaces in complex projective space. Trans. Am. Math. Soc. 269, 481–499 (1982)
4. Chern, S.S., do Carmo, M., Kobayashi, S.: Minimal submanifolds of a sphere with second fundamental form of constant length. In: Browder, F.E. (ed.) Functional Analysis and Related Fields, pp. 59–75. Springer, Berlin (1970)
5. Djorić, M., Okumura, M.: CR submanifolds of maximal CR dimension of complex projective space. Arch. Math. 71, 148–158 (1998)