Title of part of a book (for example, chapter, module) described in a bibliographic reference.
Any combination of:
Text, numbers, or special characters
Emphasis Elements
<bold> Bold
<fixed-case> Fixed Case
<italic> Italic
<monospace> Monospace Text (Typewriter Text)
<overline> Overline
<roman> Roman
<sans-serif> Sans Serif
<sc> Small Caps
<strike> Strike Through
<underline> Underline
<ruby> Ruby Annotation Wrapper
Linking Elements
<email> Email Address
<ext-link> External Link
<uri> Uniform Resource Identifier (URI)
Baseline Change Elements
<sub> Subscript
<sup> Superscript