Montero, Pedro J. Stellar Astrophysics, MPI for Astrophysics, Max Planck Society;
Sanchis-Gual, N., Degollado, J. C., Montero, P. J., & Font, J. A. (2015). Quasistationary solutions of self-gravitating scalar fields around black holes. Physical Review D, 91(4): 043005. doi:10.1103/PhysRevD.91.043005.