@article{latgé_grimm_ferreira_2006,  title={Magnetic field effects of double-walled carbon nanotubes},  volume={36},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332006000600026},  DOI={10.1590/S0103-97332006000600026},  number={3b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Latgé, A. and Grimm, D. and Ferreira, M. S.},  year={2006},  month={Sep},  pages={898–901} }