(англ.) Ward PJ, H Renssen, JCJH Aerts, RT van Balen & J Vandenberghe (2008), «Strong increases in flood frequency and discharge of the River Meuse over the Late Holocene: impacts of long-term anthropogenic land use change and climate variability». Hydrol. Earth Syst. Sci. 12: 159—175. http://www.hydrol-earth-syst-sci.net/12/159/2008/hess-12-159-2008.pdf [Архівовано 17 лютого 2020 у Wayback Machine.] [Ward et al., 2008]
(англ.) Ward PJ, H Renssen, JCJH Aerts, RT van Balen & J Vandenberghe (2008), «Strong increases in flood frequency and discharge of the River Meuse over the Late Holocene: impacts of long-term anthropogenic land use change and climate variability». Hydrol. Earth Syst. Sci. 12: 159—175. http://www.hydrol-earth-syst-sci.net/12/159/2008/hess-12-159-2008.pdf [Архівовано 17 лютого 2020 у Wayback Machine.] [Ward et al., 2008]