1. On the gravitational field of a sphere of incompressible fluid according to einstein’s theory;Schwarzschild;Sitzungsber. Preuss. Akad. Wiss. Berlin (Math. Phys.),1916
2. On continued gravitational contraction;Oppenheimer;Phys. Rev.,1939
3. The dark side of string theory: Black holes and black strings;Horowitz,1993
4. The three-dimensional BTZ black hole as a cylindrical system in four-dimensional general relativity;Lemos;Phys. Rev. D,1996
5. Isolated horizons in (2+1) gravity;Ashtekar;Adv. Theor. Math. Phys.,2003