1. Keyes RW (2001) Proc IEEE 89:227, see also the International Technology Roadmap for Semiconductors (ITRS), 2004 Edition, available at http://public.itrs.net
2. Feynman RP (1960) Eng Sci 23:22
3. Feynman RP (1960) Saturday Rev 43:45; see also: http://www.feynmanonline.com
4. Drexler KE (1986) Engines of Creation–-The Coming Era of Nanotechnology. Anchor Press, New York
5. Drexler KE (1992) Nanosystems. Molecular Machinery, Manufacturing, and Computation. Wiley, New York