1 "unctional Requirements for Uniform Resource Names, IETF RFC 1737"
2 "Using Universal Content Identifier (UCI) as Uniform Resource Names (URN), IETF RFC 4179"
3 "UCI 명세서 3.0"
4 Sanghyun Park, "UCI prefix improvement for usage increasement" 671-673, 2015
5 Gyoo gun Lim, "The study of UCI global standardization and technical performance improvement" Korea Copyright Committee 2014
6 "Information and documentation - International standard serial number (ISSN), ISO 3297"
7 "Information and documentation - International standard book number (ISBN), ISO 2108"
8 "Information and documentation - Digital object identifier system, ISO 26324"