1. Aarts, E., Lenstra, J.K.: Local Search in Combinatorial Optimization. John Wiley & Sons, Chichester (1997)
2. Krzysztof, R.: Apt. In: Principles of Constraint Programming. Cambridge University Press, Cambridge (2003)
3. Lecture Notes in Computer Science;R. Cipriano,2009
4. Lecture Notes in Computer Science;R. Cipriano,2008
5. Di Gaspero, L., Schaerf, A.: Writing local search algorithms using EasyLocal++. In: Voß, S., Woodruff, D.L. (eds.) Optimization Software Class Libraries, OR/CS, Kluwer Academic Publisher, Boston (2002)