- https://purl.semanticip.org/linked-data/sdmx/ML/interval
TTL - owl:DatatypeProperty
- interval
- localElement
- SDMXStructureBase.xsd
<xs:attribute name="interval" type="xs:integer" use="optional">...</xs:attribute>
<xs:attribute name="interval" type="xs:integer" use="optional">...</xs:attribute>