Reniere, S., W. De Clercq, R. Dreesen, E. Goemaere, G. Fronteau, T. Gluhak, E. Hartoch, and P. Picavet. “Querns and Mills During Roman Times at the Northern Frontier of the Roman Empire (Belgium, Northern France, Southern Netherlands, Western Germany): Unraveling Geological and Geographical Provenances, a Multidisciplinary Research Project”. Journal of Lithic Studies, Vol. 3, no. 3, Oct. 2016, pp. 403-28, doi:10.2218/jls.v3i3.1640.