95, pp 361–366* Zwicker U., Greiner H., Hofmann K. & Reithinger M., 1985, "Smelting, Refining and Alloying of copper and copper Alloys in Crucible Furnaces During Prehistoric up to Roman Times", P. Craddock & M. Hughes, Furnaces and smelting Technology in Antiquity, British Museum, London
95, pp 361–366* Zwicker U. , Greiner H. , Hofmann K. & Reithinger M. , 1985, "Smelting, Refining and Alloying of copper and copper Alloys in Crucible Furnaces During Prehistoric up to Roman Times", P. Craddock & M. Hughes, Furnaces and smelting Technology in Antiquity, British Museum, London