M.M. Janssens, C. Kasse, S.J.P. Bohncke, H. Greaves, K.M. Cohen, J. Wallinga, & W.Z. Hoek. (2012). Climate-driven fluvial development and valley abandonment at the last glacial-interglacial transition (Oude IJssel-Rhine, Germany). Netherlands Journal of Geosciences, 91, 37 - 62. https://doi.org/10.1017/S001677460000055X