BURSA, M. Gravitationally Lensed Oscillations of a Slender Torus. In: CHEN, P., BLOOM, E., MADEJSKI, G., PATROSIAN, V., eds. Proceedings of the 22nd Texas Symposium on Relativistic Astrophysics. Stanford: Stanford University, 2005, 2101-1-2101-3. Dostupné z: http://www.slac.stanford.edu/econf/C041213/