@InBook{Using_Colored_Petri_Nets_for_Conversation_Modeling,
  author = "R. Scott Cost and Ye  Chen and Tim  Finin and Yannis K Labrou and Yun  Peng",
  editor = "Frank  Dignum and Mark  Greaves",
  title = "{Using Colored Petri Nets for Conversation Modeling}",
  month = "September",
  year = "2000",
  series = "Lecture Notes in AI",
  pages = "178-192",
  volume = "1916",
  booktitle = "Agent Communication Languages",
  publisher = "Springer-Verlag",
}