@article{gonçalves_sandonato_iha_2003,  title={Electron field emission measurements from boron-doped CVD diamond on tantalum},  volume={33},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332003000100006},  DOI={10.1590/S0103-97332003000100006},  number={1},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Gonçalves, J. A. N. and Sandonato, G. M. and Iha, K.},  year={2003},  month={Mar},  pages={94–97} }