@article{BMMS_1998_21_1_a5,
     author = {Ikawa Toshihiko},
     title = {Spacelike {Maximal} {Surfaces} with {Constant
}                        {Scalar} {Normal} {Curvature} in a {Normal} {Contact} {Lorentzian
}                        {Manifold}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {1998},
     volume = {21},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_1998_21_1_a5/}
}