{{cite conference |first=Marco |last=Fontani |title=The Twilight of the Naturally-Occurring Elements: Moldavium (Ml), Sequanium (Sq) and Dor (Do) |format=doc |conference=International Conference on the History of Chemistry |page=1–8 |date=10 sentyabr 2005 |location=Lisbon |url=http://5ichc-portugal.ulusofona.pt/uploads/PaperLong-MarcoFontani.doc |access-date=8 aprel 2007 |archive-url=https://web.archive.org/web/20060224090117/http://5ichc-portugal.ulusofona.pt/uploads/PaperLong-MarcoFontani.doc |archive-date=24 fevral 2006}}