@article{Borowiecki:1995,
  author  = "M. Borowiecki and E. Drgas-Burchardt and P. Mihok",
  title   = "Generalized list colourings of graphs",
  journal = "Discussiones Mathematicae : Graph Theory",
  volume  = "Vol. 15",
  number  = "no 2",
  pages   = "185--193",
  year    = "1995",
}