1. Kathleen Lonsdale Materials Chemistry
2. Department of Chemistry
3. University College London
4. London WC1H 0AJ
5. UK
6. Department of Physics and Astronomy
7. London WC1E 6BT
8. Department of Materials Science and Mechanical Engineering
9. Duke University
10. Durham
11. USA
12. Materials Modelling Centre
13. University of Limpopo
14. Sovenga 0727
15. South Africa