Imaging of NbSe2 nanotube by STM K. Ichimura, K. Tamura, M. Ogata, K. Nomura, T. Toshima and S. Tanda J. Phys. IV France, 131 (2005) 235-237 Published online: 18 January 2006 DOI: 10.1051/jp4:2005131060