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ETSI TS 133 203
M00000033
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ETSI TS 133 203 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); 3G security; Access security for IP-based services (3GPP TS 33.203 version 7.9.0 Release 7)
standard by European Telecommunications Standards Institute, 04/01/2008
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