1. J. Maldacena, The large N limit of superconformal field theories and supergravity, hep-th/9711200.
2. Gauge theory correlators from non-critical string theory;Gubser;Phys. Lett. B,1998
3. E. Witten, Anti-de Sitter space and holography, hep-th/9802150.
4. K. Behrndt, A.H. Chamseddine and W.A. Sabra, BPS black holes in N = 2 five-dimensional AdS supergravity, hep-th/9807187.
5. M.M. Caldarelli and D. Klemm, Supersymmetry of anti-de Sitter black holes, hep-th/9808097;