@article{Guerra:2003,
  author  = "I. Guerra and T. Nadzieja",
  title   = "Convergence to stationary solutions in a model of self-gravitating systems",
  journal = "Colloquium Mathematicum",
  volume  = "Vol. 98",
  number  = "no 1",
  pages   = "39--47",
  year    = "2003",
}