@inproceedings{Boerger*2001:Solving,
  title = "Solving Conflicts in {UML} State Machines Concurrent States",
  author = "E. Boerger and A. Cavarra and E. Riccobene",
  year = "2001",
  address = "Toronto, Canada",
  booktitle = "{UML} 2001, Workshop on Concurrency Issues in {UML}",
  month = "OCT",
}