古希腊钱币York: Sanford J. Durst, ISBN 0-915262-75-4. Melville Jones, John R., 'A Dictionary of Ancient Greek Coins', London, Seaby 1986, reprinted Spink 2004. Melville
難熔金屬 5–9 June 2000 (London: James & James Ltd). 2000. ISBN 1-902916-15-8. Spink, Donald. Reactive Metals. Zirconium, Hafnium, and Titanium. Industrial &