@article{Bojarski:1998,
  author  = "J. Bojarski and R. Zmyślony",
  title   = "Nonnegative bayesian estimators for nonnegative parametric functions in linear models",
  journal = "Discussiones Mathematicae : Algebra and Stochastic Methods",
  volume  = "Vol. 18",
  number  = "no 2",
  pages   = "187--193",
  year    = "1998",
}