@InProceedings{Karatkevich:2004,
  author  = "A. Karatkevich and T. Gratkowski",
  title       = "Analysis of the operational Petri nets by a distributed system",
  booktitle   = "Modern Problems of Radio Engineering, Telecommunications and Computer Science - TCSET'2004 : Proceedings of the International Conference; ISBN: 9665533800",
  address     = "Lviv, Ukraina",
  publisher   = "Lviv, Publishing House of Lviv Polytechnic",
  pages       = "319--322",
  organization = "Lviv Polytechnic National University",
  year        = "2004",
}