[1] DCMI: DCMI Metadata Terms, , https://www.dublincore.org/specifications/dublin-core/dcmi-terms/#http%3A%2F%2Fpurl.org%2Fdc%2Fterms%2FSizeOrDuration
[2] DCMI: Domains and Ranges for DCMI Properties, , https://www.dublincore.org/specifications/dublin-core/domain-range/#SizeOrDuration