Name or identifier (for example, DOI) that describes an entire volume.
External Identifier: This element holds an external identifier, typically assigned to a volume of a publication a publisher. The contents of this element should not be confused with the @id attribute, which holds an internal document identifier that can be used by software to preform a simple link.
<!ELEMENT volume-id (#PCDATA %volume-id-elements;)* >
(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | fixed-case | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | ruby | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x)*
Any combination of:
<article-meta>, <element-citation>, <front-stub>, <mixed-citation>, <product>, <related-article>, <related-object>
No sample is available at this time.