Adomaitienė, Elena, et al. “Inhibition of Spikes in an Array of Coupled FitzHugh–Nagumo Oscillators by External Periodic Forcing”. Nonlinear Analysis: Modelling and Control, vol. 22, no. 3, May 2017, pp. 421-9, https://doi.org/10.15388/NA.2017.3.10.