Extracting specific Yoast info from an rss feed

Under Advanced > RSS, there is the section for “The post %%POSTLINK%% appeared first on %%BLOGLINK%%.” This is applying content within the feed item’s description node. I need to extract that content.

I’ve combined two feeds from different blogs I manage using RSSMIX (http://www.rssmix.com/u/8225102/rss.xml) and have applied them to the bottom of the following landing page: http://knowgreaterpartnership.com/100-days-in-a-minute/

I’d like to show the blog’s name with each item and a link to that blog. How can I specify just that blog name and link?

This is the code I currently have:

<article>
<?php if ( function_exists( 'fetch_feed' ) ) { ?>
    <?php include_once(ABSPATH . WPINC . '/feed.php');
        $feed = fetch_feed( 'http://www.rssmix.com/u/8225102/rss.xml' );
        $limit = $feed -> get_item_quantity(7);
        $items = $feed -> get_items(0, $limit);

    if ( !$items ) {
        echo "problem";
    }
    else {
        //everything's cool
        foreach( $items as $item ){ ?>

        <div class="feed-post">
            <h2 class="post"><a class="link" href="<?php echo $item -> get_permalink(); ?>" target="_blank"><?php echo $item -> get_title(); ?></a></h2>
            <p class="date"><?php echo $item -> get_date( 'F j, Y' ); ?></p>
            <p class="blogname"><a href="The Blog Link">The Blog Name</a></p>
        </div>
        <?php }
    } ?>
<?php } ?>

</article>

This line is where this content would go.
<p class="blogname"><a href="The Blog Link">The Blog Name</a></p>

Thank you