@book{Borowiecki:1997,
  editor    = "M. Borowiecki",
  title     = "Discussiones Mathematicae : Graph Theory, ISSN: 1234-3099",
  publisher = "Technical University Press",
  address   = "Zielona Góra",
  year      = "1997",
  volume    = "Vol.17(no 1-2)",
}