Disambiguation evidence for 3GPP TS 31.221 via surface form

"3GPP TS 31.221"

Triples (1)

Triples where some other subject referred to this entity as "3GPP TS 31.221".

TS 31-series → includes →
"3GPP TS 31.221"
↳ resolves to 3GPP TS 31.221
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