1. International Year of Crystallography Home Page (2014) http://www.icyr2014.org/home . Accessed 13 April 2014
2. UNESCO (2014) http://www.unesco.org/new/en/natural-sciences/science-technology/basic-sciences/infocus-bes/international-year-of-crystallography-2014/ . Accessed 13 April 2014
3. Ewald PP (1964) Acta Cryst 17:1091
4. Donnay DH (1965) Am Miner 50:539
5. American crystallographic association–award descriptions http://www.amercrystalassn.org/content/pages/main-awards-prizes . Accessed 2 April 2014