@article{przeworski_alvarez_cheibub_limongi_1997,  title={O que mantém as democracias?},  ISSN={0102-6445},  url={https://doi.org/10.1590/S0102-64451997000200006},  DOI={10.1590/S0102-64451997000200006},  number={40-41},  journal={Lua Nova: Revista de Cultura e Política},  publisher={CEDEC},  author={Przeworski, Adam and Alvarez, Michael and Cheibub, José Antonio and Limongi, Fernando},  year={1997},  month={Aug},  pages={113–135} }