JorgeAmVF

autometa’s SUMUS is a simple plugin that uses the following shortcode:
<ul>
<li><code>[sumus]</code> = to reproduce the publication excerpt.</li>
</ul>
autometa’s SUMUS is a standalone component of <a href="https://wordpress.org/plugins/autometa/" rel="ugc">autometa</a> shortcodes pack.

autometa's SUMUS

It reproduces publication excerpts in pages or posts simply via: [sumus].

Peter Westwood

This plugin allows you to specify a specifc excerpt for WordPress pages.
The plugin adds an extra box to the set an Optional Excerpt for a WordPress page similar to the box which is available for posts. The box is aded using the dbx_page_advanced hook for versions of WordPress earlier than 2.5 and using add_meta_box() for WordPress 2.5 and later.

PJW Page Excerpt

This plugin allows you to specify a specifc excerpt for WordPress pages.

autometa's SUMUS vs PJW Page Excerpt