Prasad Raghavendra, Sofya Raskhodnikova, Klaus Jansen, José D. P. Rolim: Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques - 16th International Workshop, APPROX 2013, and 17th International Workshop, RANDOM 2013, Berkeley, CA, USA, August 21-23, 2013. Proceedings. Lecture Notes in Computer Science 8096, Springer 2013, ISBN 978-3-642-40327-9