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Property:External formatter URI
From Γνωσιακή Βάση Υπηρεσιών και Διαδικασιών του Δημοσίου Τομέα
"External formatter URI" is a predefined property provided by Semantic MediaWiki to specify an external resource with a placeholder. The URI is expected to contain a placeholder that will be adjusted with an external identifier value to form a valid resource reference. This property is pre-deployed (also known as special property) and comes with additional administrative privileges but can be used just like any other user-defined property.
