Dejonghe L., Ladeuze F. & Jans D., 1993. Atlas des gisements plombo-zincifères du Synclinorium de Verviers (Est de la Belgique).Memoirs of the Geological Survey of Belgium, 33, 483 p.
The printed version of the Memoirs Vol. 33 is available for sale at the GSB. For ordering, please contact gsb@naturalsciences.be
