pelican-themes/pelican-bootstrap3/templates/includes/translations.html

{% macro translations_for(article) %}
{% if article.translations %}
<span class="label label-default">Lang</span>
{% for translation in article.translations %}
	<a href="{{ SITEURL }}/{{ translation.url }}">{{ translation.lang }}</a>
{% endfor %}
{% endif %}
{% endmacro %}