The recent theory of Tsironis and Grigolini for the mean first-passage time from one metastable state to another of a bistable potential for long correlation times of the noise is extended to large but finite correlation times.
de la Rubia, F.J. [et al.]. Escape over a potential barrier driven by colored noise: large but finite correlation time. "Physical review A", 1988, vol. 38, núm. 7, p. 3827-3829.