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underlinesee @underline-style

<underline> Underline

Underline Attributes parameter entitysee %underline-atts;

%underline-atts;

@underline-style

undisclosed authorsee <anonymous>

Uniform Resource Identifieruse <uri>

Uniform Resource Identifier (URI)

unique identifiersee @id

@units Units

units of measuresee <size>use @units

universitysee <aff>see <institution>

university degreeuse <degrees>

unknown, authorsee <anonymous>

unordered listsee <list>

unprinted-itemsee <supplementary-material>

unstructured citation textsee <comment>

Up/Down Rendition Class Elements parameter entitysee %subsup.class;

<uri>

URI Attributes parameter entitysee %uri-atts;see %uri-atts;

%uri-atts;

%uri-elements;

URI Elements parameter entitysee %uri-elements;

URI for This Same Article Online

URLsee <ext-link>see <uri>

URL of this articlesee <self-uri>

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