Dewalque, L., & Martin, H. (1983). Geochemical Dispersion of Lead and Zinc Around a Gossan in a Carbonate Environment At Heure (belgium). Mineralium Deposita : international journal of geology, mineralogy, and geochemistry of mineral deposits, 18(1), 27-38. https://hdl.handle.net/2078.5/42634 (Original work published 1983)