Nollert

Quasinormal modes of Schwarzschild black holes: The determination of quasinormal frequencies with very large imaginary parts.

H. Nollert, Nollert, 1993, Physical review. D, Particles and fields.

Quasinormal modes of Schwarzschild black holes: Defined and calculated via Laplace transformation.

Schmidt, Nollert, 1992, Physical review. D, Particles and fields.

Nonradial oscillations of neutron stars: A new branch of strongly damped normal modes.

Soffel, Nollert, Leins, 1993, Physical review. D, Particles and fields.

About the significance of quasinormal modes of black holes.

Nollert, 1996, Physical review. D, Particles and fields.