On the Global Convergence of Halley's Iteration Formula. M. Davies; B. Dawson — 1975 Numerische Mathematik
Laplace asymptotic expansions for Gaussian functional integrals. Davies, Ian M. — 1998 Electronic Journal of Probability [electronic only]
Semiclassical analysis and a new result for Poisson-Lev́y excursion measures. Davies, Ian M. — 2008 Electronic Journal of Probability [electronic only]