The following publications are possibly variants of this publication:
- Approximating Treewidth, Pathwidth, and Minimum Elimination Tree HeightHans Leo Bodlaender, John R. Gilbert, Ton Kloks, Hjálmtyr Hafsteinsson. criwg 1992: 1-12
- Approximating Treewidth and Pathwidth of some Classes of Perfect GraphsTon Kloks, Hans L. Bodlaender. isaac 1992: 116-125
- Treewidth and Pathwidth of Permutation GraphsHans Leo Bodlaender, Ton Kloks, Dieter Kratsch. icalp 1993: 114-125
- Treewidth and Pathwidth of Permutation GraphsHans Leo Bodlaender, Ton Kloks, Dieter Kratsch. siamdm, 8(4):606-616, 1995. [doi]