2 References

22.1683GPPEarthquake and Tsunami Warning System (ETWS) requirementsStage 1TS

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

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[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications"

[2] 3GPP TR 22.968: "Study for requirements for a Public Warning System (PWS)"