@article{silva_silva_2006, title={Foreword}, volume={36}, ISSN={0103-9733}, url={https://doi.org/10.1590/S0103-97332006000300001}, DOI={10.1590/S0103-97332006000300001}, number={2a}, journal={Brazilian Journal of Physics}, publisher={Sociedade Brasileira de Física}, author={Silva, Erasmo A. de Andrada e and Silva, Antonio José Roque da}, year={2006}, month={June}, pages={1–1} }