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                <h3 property="schema:name">Normative References</h3>
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                    <dt id="bib-rfc2119">[RFC2119]</dt>
                    <dd><a href="https://datatracker.ietf.org/doc/html/rfc2119" rel="cito:citesAsAuthority"><cite>Key words for use in RFCs to Indicate Requirement Levels</cite></a>. S. Bradner.  IETF. March 1997. B