Luis Nero Alves Luis Barbosa E. A. L. Macedo Rui L. Aguiar General model for delayed feedback and its application to transimpedance amplifier's bandwidth optimization. 2006 conf/iscas/2006 ISCAS http://dx.doi.org/10.1109/ISCAS.2006.1692735 db/conf/iscas/iscas2006.html#AlvesBMA06