Montero, P. J. Stellar Astrophysics, MPI for Astrophysics, Max Planck Society;
Montero, P. J., & Zanotti, O. (2012). Oscillations of relativistic axisymmetric tori and implications for modelling kHz-QPOs in neutron star X-ray binaries. Monthly Notices of the Royal Astronomical Society, 419(2), 1507-1514. doi:10.1111/j.1365-2966.2011.19806.x.