@Article{DT103,
  title = {Morphology and Stability of Growing Multiwall
           Carbon Nanotubes},
  author = {Kwon, Young-Kyun and Lee, Young Hee and
            Kim, Seong-Gon and Jund, Philippe and Tomanek, David
            and Smalley, Richard E.},
  journal = {Phys. Rev. Lett.},
  volume = {79},
  number = {11},
  pages = {2065--2068},
  year = {1997},
  month = {Sep},
  url = {http://dx.doi.org/10.1103/PhysRevLett.79.2065},
  doi = {10.1103/PhysRevLett.79.2065},
  publisher = {American Physical Society}
}