@inproceedings{RueeggESvH16,
  author = {Ulf R{\"u}egg and Thorsten Ehlers and Miro Sp{\"o}nemann and Reinhard von Hanxleden},
  title = {A Generalization of the Directed Graph Layering Problem},
  booktitle = {Proceedings of the 24th International Symposium on Graph Drawing and Network Visualization (GD '16)},
  year = {2016},
  doi = {10.1007/978-3-319-50106-2\_16},
  pages = {196--208},
  pdf = {gd16a.pdf},
}