Euler-Maruyama approximations in mean-reverting stochastic volatility model under regime-switching. Mao, Xuerong; Truman, Aubrey; Yuan, Chenggui — 2006 Journal of Applied Mathematics and Stochastic Analysis
Feynman maps, Cameron-Martin formulae and anharmonic oscillators David Elworthy; Aubrey Truman — 1984 Annales de l'I.H.P. Physique théorique