@book{Korbicz:2017,
  editor    = "J. Korbicz",
  title     = "International Journal of Applied Mathematics and Computer Science, ISSN: 1641-876X",
  publisher = "University of Zielona Góra Press",
  address   = "Zielona Góra",
  year      = "2017",
  volume    = "Vol. 27(no. 1-4)",
}