TY - JOUR AU - Li, Yongkun TI - Existence and exponential stability of periodic solution for continuous-time and discrete-time generalized bidirectional neural networks JO - Electronic Journal of Differential Equations PY - 2006 VL - 2006 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a68/ LA - en ID - EJDE_2006__2006__a68 ER -