Martin Heinrich Klaproth, "Chemische Untersuchung des sogenannten hungarischen rothen Schörls" (Chemical investigation of the so-called Hungarian red tourmaline [rutile]) in: Beiträge zur chemischen Kenntniss der Mineralkörper (Contributions to the chemical knowledge of mineral substances), vol. 1, (Berlin, (Germany): Heinrich August Rottmann, 1795), 233-244. From page 244: "Diesem zufolge will ich den Namen für die gegenwärtige metallische Substanz, gleichergestalt wie bei dem Uranium geschehen, aus der Mythologie, und zwar von den Ursöhnen der Erde, den titanien, entlehnen, und benenne also diese neue Metallgeschlecht: titanium; ... " (By virtue of this I will derive the name for the present metallic substance — as happened similarly in the case of uranium — from mythology, namely from the first sons of the Earth, the titanis, and thus [I] name this new species of metal: "titanium"; ...)
Berglund, Fredrik; Bjorn Carlmark (tháng 10 năm 2011). "titanium, Sinusitis, and the Yellow Nail Syndrome". Biological Trace Element Research. Quyển143 số1. tr.1–7. doi:10.1007/s12011-010-8828-5. PMC3176400. PMID20809268.
Berglund, Fredrik; Bjorn Carlmark (tháng 10 năm 2011). "titanium, Sinusitis, and the Yellow Nail Syndrome". Biological Trace Element Research. Quyển143 số1. tr.1–7. doi:10.1007/s12011-010-8828-5. PMC3176400. PMID20809268.
pubmed.ncbi.nlm.nih.gov
Berglund, Fredrik; Bjorn Carlmark (tháng 10 năm 2011). "titanium, Sinusitis, and the Yellow Nail Syndrome". Biological Trace Element Research. Quyển143 số1. tr.1–7. doi:10.1007/s12011-010-8828-5. PMC3176400. PMID20809268.