@Article{DT133,
  title = {Photogalvanic Effects in Heteropolar Nanotubes},
  author = {Kr\'{a}l, Petr and Mele, E. J. and Tomanek, David},
  journal = {Phys. Rev. Lett.},
  volume = {85},
  number = {7},
  pages = {1512--1515},
  year = {2000},
  month = {Aug},
  url = {http://dx.doi.org/10.1103/PhysRevLett.85.1512},
  doi = {10.1103/PhysRevLett.85.1512},
  publisher = {American Physical Society}
}