“…The authors ( [5,12]) investigated the following neutral-type neural systems: (x i ) (t) = −a i (t)x i (t) + n j=1 [b ij (t)f j (t, x j (t)) + d ij (t)g j (t, x j (t − τ ij (t)))] + I i (t), x i (t) = φ i (t), t ∈ [−τ, 0], i = 1, 2, · · · , n, and y (t) = −Ay(t) + Bg(y(t)) + Cg(y(t − τ(t))) + Dy (t − h(t)), t = t k , ∆y(t) = I k (y(t)), t = t k , y(t + 0 + s) = φ(s), s ∈ [t 0 − ρ, t 0 ], k ∈ N. More detailed results on neural networks could be found in [11,14,17] and the references therein.…”