A. Zdziarski (CAMK)
Based on Laurent et al., arXiv:1104.4282
M. Janiak (CAMK)
Based on Poutanen and Stern, arXiv:1005.3792
M. Fortin (Observatoire de Paris-Meudon, CAMK)
Based on: Page et al., arXiv:1011.6142, Shternin et al., arXiv:1012.0045
G. Handler (CAMK)
W. Pych (CAMK)