C. Vandenbroeck, SIMPLE STOCHASTIC-MODEL FOR RESONANT ACTIVATION, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 47(6), 1993, pp. 4579-4580
We present three variants of an extremely simple stochastic model, one
of which does not display a ''resonant phenomenon'' discussed recentl
y [Ch. Doering and C. Gadoua, Phys. Rev. Lett. 69, 2318 (1992)], while
the other two variants do.