@InProceedings{Urbanowski:2008,
  author      = "K. Urbanowski",
  title       = "On a possible quantum contribution to the red shift",
  booktitle   = "Practical cosmology : proceedings of the international conference "Problems of Practical Cosmology"; ISBN: 9785902632061",
  address     = "Saint Petersburg, Rosja",
  publisher   = "Saint Petersburg, [brak wydawcy]",
  volume      = "Vol. 2",
  pages       = "117--122",
  organization = "Russian Geographical Society",
  year        = "2008",
}