@article{articlee3d12c20,
title   = {O que mantém as democracias?},
author = {Przeworski, Adam and Alvarez, Michael and Cheibub, José Antonio and Limongi, Fernando de Magalhães Papaterra},
year = {1997},
doi = {10.1590/s0102-64451997000200006},
journal   = {Lua Nova. Revista de Cultura e Política}
}