T. Silva <em>et al.</em>" An Integrating Government News Environment", in <em>Proceedings of the 7th Brazilian Symposium on Information Systems</em>, Salvador, 2011, pp. 373-383, doi: <a href="https://doi.org/10.5753/sbsi.2011.14591">https://doi.org/10.5753/sbsi.2011.14591</a>.