L. João <em>et al.</em>" A Contribution to Context Science in the EXEHDA Middleware by Exploring Fog Computing", in <em>Proceedings of the 45th Integrated Software and Hardware Seminar</em>, Natal, 2018, pp. 71-82, doi: <a href="https://doi.org/10.5753/semish.2018.3433">https://doi.org/10.5753/semish.2018.3433</a>.