@inproceedings{SWZ95Graph,
  author = "Sch\"{u}rr, Andy and Winter, Andreas J. and Z\"{u}ndorf, Albert",
  title = "{Graph grammar engineering with PROGRES}",
  booktitle = "Proceedings of the 5th European Software Engineering Conference",
  pages = "219-234",
  address = "Sitges, Spain",
  month = "Sep.",
  year = "1995",
  url = "http://citeseer.ist.psu.edu/cache/papers/cs/3556/ftp:zSzzSzftp-i3.informatik.rwth-aachen.dezSzpubzSzreportszSzSWZ95c.pdf/sch95graph.pdf",
}