Graph-Theoretic Concepts in Computer Science : 33rd International Workshop, WG 2007, Dornburg, Germany, June 21-23, 2007, Revised Papers - Brandstädt, Andreas (Herausgeber); Kratsch, Dieter (Herausgeber); Müller, Haiko (Herausgeber) (Theoretical Computer Science and General Issues, 2007)