@article{rodrigues da silva_matheus_navarra_nielsen_2004,  title={The J/psiDD* vertex},  volume={34},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332004000200018},  DOI={10.1590/S0103-97332004000200018},  number={1a},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Rodrigues da Silva, R. and Matheus, R.D. and Navarra, F.S. and Nielsen, M.},  year={2004},  month={Mar},  pages={236–239} }