@article{EJDE_2006__2006__a168,
     author = {Li,  Yongkun},
     title = {Existence and exponential stability of periodic solution for continuous-time and discrete-time generalized bidirectional neural networks},
     journal = {Electronic journal of differential equations},
     year = {2006},
     volume = {2006},
     zbl = {1100.34056},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2006__2006__a168/}
}