$def with (authors)

<div id="resultsAuthors" class="widget-box">
  <div class="head">
    <h3>$_("Prolific Authors")</h3>
    <div class="smallest lightgreen sansserif">$_("who have written the most books on this subject")</div>
  </div>
  <div class="unordered">
    $for author in authors:
      <span class="tag">
        <a href="$author.key" title="$_('See more books by, and learn about, this author')">$author.name</a>,
      </span>
      <span class="count">$ungettext("%(count)d book", "%(count)d books", author.count, count=author.count)</span>
      <br/>
  </div>
</div>