{% if article.series %}
<section class="well" id="related-posts">
   {% set text = SERIES_TEXT|default('Part %(index)s of the %(name)s series') %}
    <h4>{{ text|format(index=article.series.index, name=article.series.name) }}</h4>
    {% if article.series.all_previous %}
       <h5>Previous articles</h5>
       <ul>
       {% for article in article.series.all_previous %}
           <li><a href="{{ SITEURL }}/{{ article.url }}">{{ article.title }}</a></li>
       {% endfor %}
       </ul>
    {% endif %}
    {% if article.series.all_next %}
       <h5>Next articles</h5>
       <ul>
       {% for article in article.series.all_next %}
           <li><a href="{{ SITEURL }}/{{ article.url }}">{{ article.title }}</a></li>
       {% endfor %}
       </ul>
    {% endif %}
</section>
{% endif %}