@book{Borowiecki:2007,
  editor    = "M. Borowiecki",
  title     = "Discussiones Mathematicae : Graph Theory, ISBN: 12343099",
  publisher = "University of Zielona Góra Press",
  address   = "Zielona Góra",
  year      = "2007",
  volume    = "Vol. 27(no 1-3)",
}