Tariku, Meklit / Meirvenne, Marc / Tack, Filip: Shelling in the First World War Increased the Soil Heavy Metal Concentration, in: Atkinson, P. M. / Lloyd, C. D. (eds.): geoENV VII – Geostatistics for Environmental Applications, vol. 16, Dordrecht 2010 Springer Netherlands, pp. 243-254.