Vida Dujmovic Michael R. Fellows Matthew Kitching Giuseppe Liotta Catherine McCartin Naomi Nishimura Prabhakar Ragde Frances A. Rosamond Sue Whitesides David R. Wood On the Parameterized Complexity of Layered Graph Drawing. 267-292 2008 52 Algorithmica 2 http://dx.doi.org/10.1007/s00453-007-9151-1 db/journals/algorithmica/algorithmica52.html#DujmovicFKLMNRRWW08