@techreport{BodlaenderFominKosteretal.2006, author = {Hans L. Bodlaender and Fedor V. Fomin and Arie M.C.A. Koster and Dieter Kratsch and Dimitrios M. Thilikos}, title = {On exact algorithms for treewidth}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {06-32}, language = {eng}, year = {2006} }