Pétri, Jérôme Prof. Heinrich J. Völk, Emeriti, MPI for Nuclear Physics, Max Planck Society;
Pétri, J. (2005). An explanation for the kHz-QPO twin peaks separation in slow and fast rotators. Astronomy & Astrophysics, 439(2), L27-L30. doi:10.1051/0004-6361:200500151.