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    <title><tag close=" ">1</tag>FooBar</title>
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      <p>Methods <cite class="ltx_citemacro_cite">[<bibref bibrefs="b1,b2" separator="," yyseparator=","/>]</cite>, by the <text font="italic">ab initio</text> crystal-orbital Hartree-Fock (HF)
In section <ref labelref="LABEL:foobar"/></p>
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      <p><ref class="ltx_url" font="typewriter" href="http://foo.com/dont%00ignorethis">http://foo.com/dont%00ignorethis</ref>
and
<ref class="ltx_url" font="typewriter" href="http://foo.com/dont%00ignorethis">http://foo.com/dont%00ignorethis</ref>
However
<ref class="ltx_url" font="typewriter" href="http://foo.com/dont">http://foo.com/dont</ref> ignore this either</p>
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      <p>Consider <verbatim font="typewriter">a_b</verbatim> versus <ref class="ltx_url" font="typewriter" href="a_b">a_b</ref>.</p>
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      <p>When delimited, extra braces are allowed by verb, but not url.
<verbatim font="typewriter">{{{{</verbatim> versus ?? OTOH, neither allow extra braces when using braces.</p>
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    <title>References</title>
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        <bibblock>C. W. Bunn, Trans. Faraday Society 35 (1939)482.
</bibblock>
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      <bibitem key="b2" xml:id="bib.bib2">
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          <tag>[2]</tag>
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        <bibblock>H. M. M. Shearer and V. Vand,
Acta Crystallogr. 9 (1956) 379; H. M. M. Shearer and P. W. Teare, ibid.
12 (1959) 294. 
</bibblock>
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