@article{Cebrat:1997,
  author  = "S. Cebrat and M. Dudek and P. Mackiewicz",
  title   = "Is there any mystery of ORPHANs?",
  journal = "Journal of Applied Genetics",
  volume  = "Vol. 38",
  number  = "no 4",
  pages   = "365--372",
  year    = "1997",
}