| https://www.telefonica.com/documents/341171/45062944/POLICY+PAPER_Smart+Cities_The+City+as+a+platform+for+Digital+Transformation+April+2016.pdf/10f6ad6b-0350-4c98-b11d-0433adf5d0fc
| https://www.wholesale.telefonica.com/en/information-centre/multimedia/benefits-of-smart-city-platforms/
