[1] R. Aiyama, On the Gauss map of complete spacelike hypersurfaces of
constant mean curvature in Minkowski space, Tsukuba J. Math. 16
(1992), 353-361.
[2] A. L. Albujer, New examples of entire maximal graphs in
Diff. Geom. and its Applications 26 (2008),
456-462.
[3] A. L. Albujer and L. J. AlÃas, Calabi-Bernstein results for
maximal surfaces in Lorentzian product spaces, J. Geom. Phys. 59
(2009), 620-631.
[4] L. J. AlÃas and M. Dajczer, Uniqueness of constant mean
curvature surfaces properly immersed in a slab, Comment. Math. Helv.
81(3) (2006), 653-663.
[5] L. J. AlÃas and A. G. Colares, Uniqueness of spacelike
hypersurfaces with constant higher order mean curvature in generalized
Robertson-Walker spacetimes, Math. Proc. Cambridge Philos. Soc. 143
(2007), 703-729.
[6] E. Calabi, Examples of Bernstein problems for some nonlinear
equations, Proc. Sympos. Pure Math. 15 (1970), 223-230.
[7] A. Caminha and H. F. de Lima, Complete vertical graphs with
constant mean curvature in semi-Riemannian warped products, Bull. of
the Belgian Math. Soc. 16 (2009), 91-105.
[8] X. Cheng and H. Rosenberg, Embedded positive constant r-mean
curvature hypersurfaces in An. Acad. Bras. Cienc. 77(2) (2005),
183-199.
[9] S. Y. Cheng and S. T. Yau, Maximal spacelike hypersurfaces in the
Lorentz-Minkowski space, Ann. of Math. 104 (1976), 407-419.
[10] J. Marsdan and F. Tipler, Maximal hypersurfaces and foliations of
constant mean curvature in general relativity, Bull. Am. Phys. Soc. 23
(1978), 84.
[11] H. Rosenberg, Hypersurfaces of constant curvature in space forms,
Bull. Sc. Math. 117 (1993), 217-239.
[12] S. Stumbles, Hypersurfaces of constant mean extrinsic curvature,
Ann. Phys. 133 (1980), 28-56.
[13] Y. L. Xin, On the Gauss image of a spacelike hypersurface with
constant mean curvature in Minkowski space, Comment. Math. Helv. 66
(1991), 590-598.