Synthesis of single wall carbon nanotubes by using arc discharge technique in nitrogen atmosphere Y. Makita, S. Suzuki, H. Kataura and Y. Achiba Eur. Phys. J. D, 34 1-3 (2005) 287-289 Published online: 13 July 2005 DOI: 10.1140/epjd/e2005-00160-3