@article{Zmyślony:1996,
  author  = "R. Zmyślony and S. Zontek",
  title   = "Robust estimation in two-way classification mixed model",
  journal = "Discussiones Mathematicae : Algebra and Stochastic Methods",
  volume  = "Vol. 16",
  number  = "no 2",
  pages   = "215--226",
  year    = "1996",
}