@article{rocha_brum_2002,  title={Ballistic transport in semiconductor quantum wires in the presence of defects},  volume={32},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332002000200012},  DOI={10.1590/S0103-97332002000200012},  number={2a},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Rocha, A. R. and Brum, J. A.},  year={2002},  month={Jun},  pages={296–299} }