@article{gerhard-multhaupt_ferreira_faria_1999,  title={Recent developments in selected areas of research initiated or significantly advanced by Bernhard Gross},  volume={29},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97331999000200001},  DOI={10.1590/S0103-97331999000200001},  number={2},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Gerhard-Multhaupt, Reimund and Ferreira, Guilherme F. Leal and Faria, Roberto M.},  year={1999},  month={Jun},  pages={215–216} }