Text this: 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 / Chandra Chekuri, Klaus Jansen, José D. P. Rolim, Luca Trevisan (eds.)