1. Ambegaokar, V. and B. I. Halperin, Phys. Rev. Lett. 22 (1969), p. 1364.
2. Ben-Jacob, E., D. Bergman, B. Matkowsky and Z. Schuss, The lifetime of metastable states (to appear).
3. Ben-Soussan, A., J. L. Lions and G. Papanicolaou, "Asymptotic Analysis of Periodic Structures," North Holland, N.Y. (1978).
4. Bobrovsky, B. Z. and Z. Schuss, A singular perturbation method for the computation of the mean first passage time in a non-linear filter, SIAM J. Appl. Math. (to appear).
5. Chandrasekhar, S., Stochastic problems in physics and astronomy, in "Selected Papers on Noise and Stochastic Processes," N. Wax, Editor, Dover, NJ (1969).