Provides information about an alternative form of the material, such as a PDF file or audio edition
When this element is used as a pointer to an alternate form, as in the case of a PDF file, the element will often be EMPTY, that is, have no content, using the attribute to point to the PDF file. However, in other instances, such as this element’s use to indicate an audio file, there may not be any link with the file, but only a description of it inside the content of the <alternate-form> element.
<!ELEMENT alternate-form
(#PCDATA) >Text, numbers, or special characters
<book-meta> Book Metadata; <book-part-meta> Book Part Metadata
...<book-part-meta>
<title-group>
<title>GenBank: The Nucleotide Sequence Database</title>
</title-group>
<contrib-group>...</contrib-group>
<history>
<date date-type="created">
<day>9</day><month>10</month><year>2002</year>
</date>
<date date-type="updated">
<day>27</day><month>7</month><year>2004</year>
</date>
</history>
<alternate-form xmlns:xlink="http://www.w3.org/1999/xlink"
alternate-form-type="pdf" xlink:href="ch1d1"/>
<abstract>
<p>The GenBank sequence database is an annotated collection of all publicly available nucleotide sequences and their protein translations. This database is produced at ...complete microbial genome sequences.</p>
</abstract>
</book-part-meta>...</body>
</book-part>
</body>
</book>
bookmeta.ent