@Article{DT104,
  title = {Electronic structure of single-wall, multiwall,
           and filled carbon nanotubes},
  author = {\"Ostling, D. and Tomanek, D. and Ros\'{e}n, A.},
  journal = {Phys. Rev. B},
  volume = {55},
  number = {20},
  pages = {13980--13988},
  year = {1997},
  month = {May},
  url = {http://dx.doi.org/10.1103/PhysRevB.55.13980},
  doi = {10.1103/PhysRevB.55.13980},
  publisher = {American Physical Society}
}