Francesca Vitagliano Raffaele Parisi Aurelio Uncini Generalized Splitting 2D Flexible Activation Function. 85-95 http://dx.doi.org/10.1007/978-3-540-45216-4_9 2003 conf/wirn/2003 WIRN db/conf/wirn/wirn2003.html#VitaglianoPU03