1. There is plenty of room at the bottom;Feynman,1999
2. Molecular engineering: an approach to the development of general capabilities for molecular manipulation;Drexler;Proc Natl Acad Sci,1981
3. Engines of creation — the coming era of nanotechnology;Drexler,1986
4. Unbounding the future: the nanotechnology revolution;Drexler,1991
5. Nanosystems — molecular machinery, manufacturing, and computation;Drexler,1992