@article{Fonseca:2003,
  author  = "M. Fonseca and J. Mexia and R. Zmyślony",
  title   = "Estimators and tests for variance components in cross nested orthogonal designs",
  journal = "Discussiones Mathematicae : Probability and Statistics",
  volume  = "Vol. 23",
  number  = "no 2",
  pages   = "175--201",
  year    = "2003",
}