@inproceedings{BH02Tutorial,
  author = "Baresi, Luciano and Heckel, Reiko",
  title = "{Tutorial introduction to graph transformation: A software engineering perspective}",
  booktitle = "International Conference on Graph Transformation (ICGT 02)",
  address = "Barcelona, Spain",
  month = "Oct.",
  year = "2002",
  url = "http://www.elet.polimi.it/upload/baresi/papers/ICGT.pdf",
}