1. F. Moss, Stochastic resonance: From the ice ages to the monkey's ear, inSome Problems in Statistical Physics, G. H. Weiss, ed. (SIAM, Philadelphia, 1992).
2. M. I. Dykman, G. P. Golubev, D. G. Luchinsky, A. L. Velikovich, and S. V. Tsuprikov,Sov. Phys. JETP Lett. 53:193 (1991).
3. M. I. Dykman, R. Mannella, P. V. E. McClintock, and N. G. Stocks,Phys. Rev. Lett. 65:2606 (1990).
4. M. I. Dykman, R. Mannella, P. V. E. McClintock, and N. G. Stocks,Sov. Phys. JETP Lett. 52:141 (1990).
5. M. I. Dykman, R. Mannella, P. V. E. McClintock, and N. G. Stocks,Phys. Rev. Lett. 68:2985 (1992).