Dain, Sergio Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
Dain, S. (2010). Extreme throat initial data set and horizon area-angular momentum inequality for axisymmetric black holes. Physical Review D., 82(10): 104010. doi:10.1103/PhysRevD.82.104010.