Marek Grochowski Wlodzislaw Duch A Comparison of Methods for Learning of Highly Non-separable Problems. 566-577 2008 ICAISC http://dx.doi.org/10.1007/978-3-540-69731-2_55 conf/icaisc/2008 db/conf/icaisc/icaisc2008.html#GrochowskiD08