[1] Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6, 2011

Preece, S.J., Pearce, N.J.G., Westgate, J.A., Froese, D.G., Jensen, B.J.L., and Perkins, W.T., 2011, Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6: Quaternary Science Reviews, v. 30, p. 2069-2099, doi:10.1016/j.quascirev.2010.04.020 .

[2] The last interglacial to glacial transition, Togiak Bay, southwestern Alaska, 2001

Kaufman, D.S., Manley, W.F., Wolfe, A.P., Hu, F.S., Preece, S.J., Westgate, J.A., and Forman, S.L., 2001, The last interglacial to glacial transition, Togiak Bay, southwestern Alaska: Quaternary Research, v. 55, n. 2, p. 190-202.

[3] A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory, 2011

Preece, S.J., Westgate, J.A., Froese, D.G., Pearce, N.J.G., and Perkins, W.T., 2011, A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory: Canadian Journal of Earth Sciences, v. 48, p. 1386-1418, doi: 10.1139/e10-110

[4] The application of ICP-MS methods to tephrochronological problems, 2004

Pearce, N.J.G., Westgate, J.A., Perkins, W.T., and Preece, S.J., 2004, The application of ICP-MS methods to tephrochronological problems: Applied Geochemistry, v. 19, n. 3, p. 289-322, doi: 10.1016/S0883-2927(03)00153-7 .