Thomas Stützle, Mauro Birattari, Holger H. Hoos: Engineering Stochastic Local Search Algorithms. Designing, Implementing and Analyzing Effective Heuristics, Second International Workshop, SLS 2009, Brussels, Belgium, September 3-4, 2009. Proceedings. Lecture Notes in Computer Science 5752, Springer 2009, ISBN 978-3-642-03750-4