van Geel , B., O. O. Brinkkemper, E. Weeda, and J. Sevink. “Formation, Vegetation Succession and Acidification of a Mid-Holocene Moorland Pool in the Western Netherlands”. Netherlands Journal of Geosciences, vol. 96, Apr. 2016, pp. 17-27, doi:10.1017/njg.2016.1.