Reverberation In Non-uniform Environments. - Alan J. Fenwick; C. H. Harrison (ISSPA, 1996)

Ray Chaos in Underwater Acoustics and its Application. - Tamás Bódai; Alan J. Fenwick; Marian Wiercigroch (Int. J. Bifurc. Chaos, 2008)

Ray Stability for Background Sound Speed Profiles with Transition. - Tamás Bódai; Alan J. Fenwick; Marian Wiercigroch (Int. J. Bifurc. Chaos, 2009)