@article{alemán_2008,  title={Policy Positions in the Chilean Senate: An Analysis of Coauthorship and Roll Call Data },  volume={2},  ISSN={1981-3821},  url={https://doi.org/10.1590/1981-3846200800020003},  DOI={10.1590/1981-3846200800020003},  number={2},  journal={Brazilian Political Science Review},  publisher={Associação Brasileira de Ciência Política},  author={Alemán, Eduardo},  year={2008},  month={May},  pages={74–92} }