%0 Journal Article %A Hans Bodlaender %A Thomas Wolle %A Arie Koster %T Contraction and Treewidth Lower Bounds %J Journal of Graph Algorithms and Applications %D 2006 %P 5-49 %V 10 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00117/ %R 10.7155/jgaa.00117 %G en %F JGAA_2006_10_1_a1