Parfitt, S.A., N.M. Ashton, S.G. Lewis, R.L. Abel, G.R. Coope, M.H. Field, R. Gale, P.G. Hoare, N.R. Larkin, M.D. Lewis, V. Karloukovski, B.A. Maher, S.M. Peglar, R.C. Preece, J.E. Whittaker, and B.B. Stringer. 2010. Early Pleistocene human occupation at the edge of the boreal zone in northwest Europe. Nature, 466: 229-233.
