Treewidth Computations II. Lower Bounds
Information and Computation 209 (2011), no. 7, 1103--1119.
BibTex references
@Article\{BK11,
author = "Bodlaender, Hans L. and Koster, Arie M.C.A.",
title = "Treewidth Computations II. Lower Bounds",
journal = "Information and Computation",
number = "7",
volume = "209",
pages = "1103--1119",
year = "2011",
note = "http://dx.doi.org/10.1016/j.ic.2011.04.003",
}