What is CiNii?
{{ infobox | title = CiNii | image = [[File:CiNii logo.svg|200px]] | caption = | producer = [[National Institute of Informatics]] | country = Japan | history = 2005–present | languages = [[Japanese language|Japanese]], [[English language|English]] | providers = | cost = Free; Subscription for full-text | disciplines = Multidisciplinary | depth = Index, abstract & full-text | formats = Journal articles and books | temporal = 1906–present | geospatial = Japan | number = 15 million | updates = | p_title = | p_dates = | ISSN = | web = http://ci.nii.ac.jp/ | titles = }} '''CiNii''' ({{IPAc-en|'|s|aɪ|n|iː}})<ref name=about/> is a [[bibliographic database]] service for things in Japanese academic libraries. The database started in April 2005 and is maintained by the [[National Institute of Informatics]].<ref name=CA/> The service searches from the NII databases [NII Electronic Library Service (NII-ELS) and Citation Database for Japanese Publications (CJP)], and the databases from the [[National Diet Library]] of Japan, [[institutional repositories]], and other organizations.<ref name=databases/> The database has more than 15 million articles from more than 3,600 publications.<ref name=journallist/> ==Database identifiers== The database gives a unique identifier, ''NII Article ID'' (NAID), to each of the journal articles in its list.<ref name=INFOSTA/> A different identifier, ''NII Citation ID'' (NCID or 書誌ID) or ''NACSIS-CAT Record ID'', is used for books. == References == <references> <ref name=about>{{cite web | url= http://ci.nii.ac.jp/info/en/cinii_outline.html | access-date=2014-02-23 | work = CiNii | title = About CiNii}}</ref> <ref name=CA>{{cite journal | url =http://current.ndl.go.jp/ca1691 | author = 大向一輝 (Ohmukai, Ikki) | journal = Current Awareness | title = 学術情報プラットフォームとしてのCiNii | date= 2009 | issue=301 |at=CA1691 }}</ref> <ref name=journallist>{{cite web | url =http://ci.nii.ac.jp/info/en/cinii_journal_lis