object identifier
Digital Object Identifier
パーマリンク
Persistent identifier
Deep linking
Digital object identifier (DOI)
Persistent uniform resource locator (PURL)
naming scheme
Digital Object Identifier
Pagination
Stephanus pagination for works of Plato
Bekker numbers for the works of Aristotle
名前空間
11-digit delivery point ZIP code
Binomial nomenclature (genus-species in biology)
Chemical nomenclature
Dewey Decimal Classification