@article{DT114,
   Author = {Bulusheva, L. G. and Okotrub, A. V. and
             Romanov, D. A. and Tomanek, D.},
   Title = {Electronic structure of (n,0) zigzag carbon nanotubes:
            Cluster and crystal approach},
   Journal = {J. Phys. Chem. A},
   Volume = {102},
   Number = {6},
   Pages = {975--981},
   Year = {1998},
   url = {http://dx.doi.org/10.1021/jp972300h},
   doi = {10.1021/jp972300h}
 }