<year>¶
| Appears in | Frequency | 
|---|---|
| Once | |
| Zero or more times | |
| Zero ou more times | |
| Once | 
Identifies the year in references. It can be the year of publication of a document, the production year of a software, the creation year of a database, etc. It can also be used in <front> to identify the publication year of an article see <pub-date> or <product>.
Examples:
Example of <year> in <article-meta>:¶
   ...
   <article-meta>
   ...
       <pub-date pub-type="epub-ppub">
           <season>Apr-Jun</season>
           <year>2016</year>
       </pub-date>
   ...
   </article-meta>
...
Example of <year> in <element-citation>:¶
...
<element-citation publication-type="journal">
    ...
    <source>Pediatric aerodigestive disorders</source>
    <year>2009</year>
    ...
</element-citation>
...
Example of <year> in <product>:¶
 ...
 <product product-type="book">
     ...
     <year>2014</year>
     <source>A revision of Axinaea (Melastomataceae)</source>
     ...
</product>
...