1. R. Feynman, Plenty of Room at the Bottom, APS Annual Meeting, Caltech, 29 December 1959, available at http://www.its.caltech.edu/∼feynman/plenty.html.
2. Mineral evolution
3. V. N. Yakovenchuk, G. Yu. Ivaniuk, Ya. A. Pakhomovsky, and Yu. P. Men'shikov, Khibiny, (Laplandia Minerals, Apatity, 2005).
4. I. V. Pekov, Lovozero Massif: History, Pegmatites, Minerals (Ocean Pictures, Moscow, 2000).
5. S. Mann, Biomineralization - Principles and Concepts in Bioinorganic Materials Chemistry (Oxford, Oxford University Press, 2001).