@inproceedings{KlauskeSS+12,
  author = {Lars Kristian Klauske and Christoph Daniel Schulze and Miro Sp{\"o}nemann and Reinhard von Hanxleden},
  title = {Improved Layout for Data Flow Diagrams with Port Constraints},
  booktitle = {Proceedings of the 7th International Conference on the Theory and Application of Diagrams (DIAGRAMS '12)},
  publisher = {Springer},
  series = {LNAI},
  volume = {7352},
  pages = {65--79},
  year = {2012},
  doi = {10.1007/978-3-642-31223-6},
  pdf = {diagrams12b.pdf},
  htmlnote = {The \href{http://www.springerlink.com/content/7u26g843132u6553}{original publication} is available at \href{http://www.springerlink.com}{www.springerlink.com}.},
  urltalk = {diagrams12b-talk.pdf},
}