Randomization, Approximation, and Combinatorial Optimization. Algorithms and Techniques : Third International Workshop on Randomization and Approximation Techniques in Computer Science, and Second International Workshop on Approximation Algorithms for Combinatorial Optimization Problems RANDOM-APPROX'99,Berkeley, CA, USA, August 8-11, 1999 Pro - Dorit S. Hochbaum, Klaus Jansen, José D. P. Rolim, Alistair Sinclair ((Lecture Notes in Computer Science))