1. Smart Cities: Ranking of European Medium-Sized Citieshttp://www.smart-cities.eu/download/smart_cities_final_report.pdf
2. An Advanced Triple-Helix Network Model for Smart Cities Performance;Lombardi,2011
3. The Internet of Everything for Cities, Cisco, Californiahttps://www.cisco.com/c/dam/en_us/solutions/industries/docs/gov/everything-for-cities.pdf
4. Department of Economic and Scientific Policyhttps://www.europarl.europa.eu/RegData/etudes/etudes/join/2014/507480/IPOL-ITRE_ET(2014)507480_EN.pdf