Mauro Forti Massimo Grazzini Paolo Nistri Luca Pancioni A result on global convergence in finite time for nonsmooth neural networks. 2006 conf/iscas/2006 ISCAS http://dx.doi.org/10.1109/ISCAS.2006.1692696 db/conf/iscas/iscas2006.html#FortiGNP06