West, R G, Andrew, R, Catt, J A, Hart, C P, Hollin, J T, Knudsen, K L, Miller, G F, Penney, D N, Pettit, M E, Preece, R C, Switsur, V R, Whiteman, C A & Zhou, L P 1999, ' Late and Middle Pleistocene deposits at Somersham, Cambridgeshire, U.K. A model for reconstructing fluvial/estuarine depositional environments ', Quaternary Science Reviews, vol. 18, no. 10-11, pp. 1247-1314 . https://doi.org/10.1016/S0277-3791(98)00067-5