1. 1. http://www.personal.psu.edu/sbk142/nanotube.htm
2. 2. http://science.uwaterloo.ca/~foldvari/research_program/index.html
3. 3. http://what-when-how.com/nanoscience-and-nanotechnology/carbon-nanotube-interconnects-nanotechnology/
4. 4. http://coronene.blogspot.com/2007_07_01_archive.html
5. 5. http://en.wikipedia.org/wiki/Carbon_nanotubes