@article{christensen_2007,  title={The influence of nationalism in Mercosur and in South America: can the regional integration project survive?},  volume={50},  ISSN={0034-7329},  url={https://doi.org/10.1590/S0034-73292007000100008},  DOI={10.1590/S0034-73292007000100008},  number={1},  journal={Revista Brasileira de Política Internacional},  publisher={Centro de Estudos Globais da Universidade de Brasília},  author={Christensen, Steen Fryba},  year={2007},  month={Jan},  pages={139–158} }