Peter Korosec Jurij Silc The Differential Ant-Stigmergy Algorithm for Large Scale Real-Parameter Optimization. 413-414 2008 ANTS Conference http://dx.doi.org/10.1007/978-3-540-87527-7_51 conf/antsw/2008 db/conf/antsw/ants2008.html#KorosecS08