@article{chick_2004,  title={On Open Systems},  volume={24},  ISSN={0101-3157},  url={https://doi.org/10.1590/0101-31572004-1638},  DOI={10.1590/0101-31572004-1638},  number={1},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={CHICK, VICTORIA},  year={2004},  month={Jan},  pages={3–17} }