1. S. Kato, J. Fukue, S. Mineshige, Black Hole Accretion Disks: Towards a New Paradigm (Kyoto University Press, Kyoto, Japan, 2008)
2. J.E. Pringle, ARA &A 19, 137 (1981)
3. F. Yuan, R. Narayan, ARA &A 52, 529 (2014)
4. N.I. Shakura, R.A. Sunyaev, Astron. Astrophys. 24, 337 (1973)
5. R. Narayan, I. Yi, ApJL 428, L13 (1994)