David Martens Manu De Backer Raf Haesen Bart Baesens Tom Holvoet Ants Constructing Rule-Based Classifiers. 21-43 2006 Swarm Intelligence in Data Mining http://dx.doi.org/10.1007/978-3-540-34956-3_2 series/sci/2006-34 db/series/sci/sci34.html#MartensBHBH06