1. Thess, A. et al. Crystalline ropes of metallic carbon nanotubes. Science 273, 483–487 (1996).
2. Dresselhaus, M. S., Dresselhaus, G. & Eklund, P. C. Science of Fullerenes and Carbon NanotubesCh. 19 (Academic, San Diego, (1996)).
3. Lee, R. S., Kim, H. J., Fischer, J. E., Thess, A. & Smalley, R. E. Conductivity enhancement in single-walled carbon nanotube bundles doped with K and Br. Nature 388, 255–257 (1997).
4. Dresselhaus, M. S. & Dresselhaus, G. Intercalation compounds of graphite. Adv. Phys. 30, 139–326 (1981).
5. Ajayan, P. M. & Iijima, S. Capillarity-induced filling of carbon nanotubes. Nature 361, 333–334 (1993).