@article{Ferland:2334,
      author        = "Ferland, G. J. and  Fabian, A. C. and  Hatch, N. A. and 
                       Johnstone, R. M. and  Porter, R. L. and  van Hoof, P. A. M.
                       and  Williams, R. J. R.",
      title         = "{Collisional heating as the origin of filament emission in
                       galaxy clusters}",
      year          = "2009",
}