@InProceedings{harrigan_et_al:DagSemProc.05191.6,
  author =	{Harrigan, Martin and Healy, Patrick},
  title =	{{On Layering Directed Acyclic Graphs}},
  booktitle =	{Graph Drawing},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2006},
  volume =	{5191},
  editor =	{Michael J\"{u}nger and Stephen Kobourov and Petra Mutzel},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagSemProc.05191.6},
  URN =		{urn:nbn:de:0030-drops-3430},
  doi =		{10.4230/DagSemProc.05191.6},
  annote =	{Keywords: Graph Drawing, Hierarchical Drawings, Layerings, Minimum Dummy Nodes}
}