J.W.A. Dijkmans, and A.G. Wintle. “Methodological Problems in Thermoluminescence Dating of Weichselian Coversand and Late Holocene Drift Sand from the Lutterzand Area, E. Netherlands”. Netherlands Journal of Geosciences (January 1, 1991): 21-33. Accessed April 7, 2026. https://njgjournal.nl/index.php/njg/article/view/12784.