@techreport{BodlaenderKoster2004, author = {Hans L. Bodlaender and Arie M.C.A. Koster}, title = {On the Maximum Cardinality Search Lower Bound for Treewidth}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {04-45}, language = {eng}, year = {2004} }