Approximation Algorithms for Combinatorial Optimization 5th International Workshop, APPROX 2002, Rome, Italy, September 17-21, 2002. Proceedings - Jansen, Klaus; Jansen, Klaus; Leonardi, Stefano; Leonardi, Stefano; Vazirani, Vijay; Vazirani, Vijay (Springer Berlin Heidelberg : Imprint: Springer, 2002)