Approximation, Randomization and Combinatorial Optimization. Algorithms and Techniques 8th International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2005 and 9th International Workshop on Randomization and Computation, RANDOM 2005, Berkeley, CA, USA, August 22-24, 2005. Proceedings - Chekuri, Chandra; Jansen, Klaus; Rolim, José D. P.; Trevisan, Luca (Springer Berlin Heidelberg, 2005)