The UK Deep and Medium Surveys with Rosat: log N-Log S relationG. Branduardi‐Raymont, M. Rowan-Robinson, Vito Graffagnino et al.|Monthly Notices of the Royal Astronomical Society|1994Cited by 26
The variable XMM-Newton spectrum of Markarian 766K. L. Page, S. Trudolyubov, K. O. Mason et al.|Springer Link (Chiba Institute of Technology)|2001Cited by 24