@techreport{KosterWolleBodlaender2004, author = {Arie M.C.A. Koster and Thomas Wolle and Hans L. Bodlaender}, title = {Degree-Based Treewidth Lower Bounds}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {04-44}, language = {eng}, year = {2004} }