1. European Telecommunications Standards Institute (ETSI). ETSI TS 102 689 V1.1.1 (2010-08), Machine-to-Machine communications; M2M service requirements.
2. 3GPP TR 23.888 V1.6.0. Third generation partnership project; Technical specification group services and system aspects; System improvements for machine-type communications. (Release 11); 2011-11.
3. Yankee Group. Mobile broadband connected future: from billions of people to billions of things. Commissioned by 4G Americas White Paper; 2011.
4. 3GPP TS 22.368 V10.2.0. Third generation partnership project; Technical specification group services and system aspects; Service requirements for Machine-Type Communications (MTC); Stage 1. (Release 10); 2010-09.
5. 3GPP TR 36.912 V11.0.0. Third generation partnership project; Technical specification group radio access network; Feasibility study for further advancements for E-UTRA (LTE-Advanced). (Release 11); 2012-09.