@inproceedings{conf/er/JungclausSH91,
  added-at = {2012-09-18T00:00:00.000+0200},
  author = {Jungclaus, Ralf and Saake, Gunter and Hartmann, Thorsten},
  biburl = {http://www.bibsonomy.org/bibtex/2a39017d36deb695fb5496781221b6522/dblp},
  booktitle = {ER},
  cdrom = {er91/ER91-P309.pdf},
  cite = {...},
  crossref = {conf/er/91},
  editor = {Teorey, Toby J.},
  interhash = {1fcd258284d551daa2af6fabee1d47fb},
  intrahash = {a39017d36deb695fb5496781221b6522},
  keywords = {dblp},
  pages = {309-324},
  publisher = {ER Institute},
  timestamp = {2012-09-18T00:00:00.000+0200},
  title = {Language Features for Object-Oriented Conceptual Modelling.},
  url = {http://dblp.uni-trier.de/db/conf/er/er91.html#JungclausSH91},
  year = 1991
}