Contraction and Treewidth Lower Bounds
Technical Report 04--29, ZIB (2004).
BibTex references
@TechReport\{BKW04,
author = "Bodlaender, Hans L. and Koster, Arie M.C.A. and Wolle, T.",
title = "Contraction and Treewidth Lower Bounds",
institution = "ZIB",
number = "04--29",
year = "2004",
address = "Berlin, Germany",
note = "http://opus.kobv.de/zib/volltexte/2004/805/",
}