<metadataformat type="Literature">
                <metadatafield>
                    <fieldName>Creator</fieldName>
                    <mandatory>true</mandatory>
                    <dataType>String</dataType>
                    <maxOccurs>*</maxOccurs>
                    <defaultValue/>
                    <note>The name of the author, with email and ORCID (if available). The format should be: family, given[, email][, ORCID]. Example: Smith, John, js@acme.org, orcid.org/0000-0002-1825-0097</note>
                    <validator>
                        <regularExpression>^[a-zA-ZÀ-ÿ .'-]+, [a-zA-ZÀ-ÿ .'-]+[, ]*([a-zA-Z0-9_!#$%’*+=?`{|}~^.-]+@[a-zA-Z0-9À-ÿ.-]+)?[, ]*(orcid.org\/0000-000(1-[5-9]|2-[0-9]|3-[0-4])\d\d\d-\d\d\d[\dX])?$</regularExpression>
                    </validator>
                </metadatafield>
            </metadataformat>