Enrique Alba Torres Sami Khuri Applying Evolutionary Algorithms to Combinatorial Optimization Problems. 689-700 2001 conf/iccS/2001-2 International Conference on Computational Science (2) http://link.springer.de/link/service/series/0558/bibs/2074/20740689.htm db/conf/iccS/iccS2001-2.html#TorresK01