참고문헌
- https://developer.apple.com/ibeacon/
- https://google.github.io/physical-web/
- https://developers.google.com/beacons/
- Patrick Connolly, Dominque Bonte, BLE Tags and The Location of Things, ABI Research, 2014.07
- IEEE Computer Society, (August 31, 2007). IEEE Standard 802.15.4a-2007. New York, NY: IEEE.