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2. Saber Talari, "A Review of Smart Cities Based on the Internet Things Concept." University of Beira Interior, Covilhã, Portugal, March 2017.
3. Domenico Balsamo. "Wearable and Autonomous Computing for Future Smart Cities: Open Challenges." University of Southampton, United Kingdom, 2017.
4. Alejandro R. García Ramirez. "Towards Human Smart Cities: Internet of Things for sensory impaired individuals. Universidade do vale do Itajaí, Univali. Rua Uruguay 458, Centro, Itajaí, Brazil. December 2016.
5. http://www.smart-cities.eu/index.php?cid=2&ver=4