@article{vita_1991,  title={Apresentação},  ISSN={0102-6445},  url={https://doi.org/10.1590/S0102-64451991000100008},  DOI={10.1590/S0102-64451991000100008},  number={23},  journal={Lua Nova: Revista de Cultura e Política},  publisher={CEDEC},  author={Vita, Álvaro de},  year={1991},  month={Mar},  pages={129–130} }