@InProceedings{Kościelny:1999,
  author  = "C. Kościelny and T. Hebisz and M. Jackiewicz",
  title       = "A cryptographic system for ISDN channels",
  booktitle   = "TRANSCOM '99 : 3-rd European Conference of Young Research and Science Workers in Transport and Telecommunications",
  address     = "Zilina, Słowacja",
  publisher   = "Zilina, University of Zilina",
  number   = "Section 2",
  pages       = "19--21",
  organization = "University of Zilina",
  year        = "1999",
}