{# always display attribution for publication date, even if creators author & editor are not set #}
<div class="attribution">
    {% if page.authors %}
    <span class="authors">
        {% include 'pages/snippets/attribution.html' with creators=page.authors %}
    </span>
    {% endif %}
    {% if page.editors %}
    <span class="editors">
        Edited by {% include 'pages/snippets/attribution.html' with creators=page.editors %}
    </span>
    {% endif %}
    <span class="pubdate">
    <time datetime="{{ page.first_published_at|date:'Y-m-d' }}">
        {{ page.first_published_at|date:"N j, Y" }}
        {% if page.latest_revision_created_at|date:'Y-m-d' != page.first_published_at|date:'Y-m-d' %}
        (updated <time datetime="{{ page.latest_revision_created_at|date:'Y-m-d' }}">{{ page.latest_revision_created_at|date:"N j, Y" }}</time>)
        {% endif %}
    </time>
    {% if page.doi %}
        <a href="http://doi.org/{{ page.doi }}" rel="alternate" class="doi">doi:{{ page.doi }}</a>
    {% endif %}
    {% if page.pdf %}
        <a href="{{ page.pdf }}" rel="alternate" class="pdf">PDF</a>
    {% endif %}
</div>