PLANCKIAN ENERGY SCATTERING

1)   I.Ya.Aref'eva, K.S. Viswanathan and I.V.Volovich, Planckian
      Energy Scattering, Colliding Plane Gravitational Waves and Black Hole
      Creation, Nucl.Phys.B452 (1995) 346, http://xxx.lanl.gov/abs/hep-th/9412157

2)  I.Ya. Arefeva, K.S. Viswanathan, I.V. Volovich,
     On black hole creation in planckian energy scattering .
     Int.J.Mod.Phys.D5:707-722,1996, hep-th/9512170, http://xxx.lanl.gov/abs/hep-th/9512170

3)   I.Ya. Aref'eva,
      High Energy Scattering in the Brane-World and Black Hole Production,
      Partilles and Nuclei, v.31, 2000, p.169, hep-th/9910269, http://xxx.lanl.gov/abs/hep-th/9910269