{% if crossref_issue.issue and crossref_issue.issue.date %}
{% spaceless %}<conference>{% endspaceless %}
            <event_metadata>
                {% if crossref_issue.issue.issue_title %}
                <conference_name>{{ crossref_issue.issue.issue_title }}</conference_name>
                {% else %}
                <conference_name>{{ crossref_issue.journal.title }}</conference_name>
                {% endif %}
            </event_metadata>
            <proceedings_metadata>
                {% if crossref_issue.issue.issue_title %}
                <proceedings_title>{{ crossref_issue.issue.issue_title }}</proceedings_title>
                {% else %}
                <proceedings_title>{{ crossref_issue.journal.title }}</proceedings_title>
                {% endif %}
                <publisher>
                    <publisher_name>
                        {{ crossref_issue.issue.publisher }}
                    </publisher_name>
                </publisher>
                <publication_date media_type="online">
                    <month>{{ crossref_issue.issue.date.month }}</month>
                    <day>{{ crossref_issue.issue.date.day }}</day>
                    <year>{{ crossref_issue.issue.date.year }}</year>
                </publication_date>
                {% if crossref_issue.issue.isbn %}
                <isbn>{{ crossref_issue.issue.isbn }}</isbn>
                {% else %}
                <noisbn reason="simple_series"/>
                {% endif %}
            </proceedings_metadata>
            {% for article in crossref_issue.articles %}
                {% include "common/identifiers/crossref_conference_paper.xml" with article=article %}
            {% endfor %}
        </conference>
{% endif %}