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Digital object identifier

ISO standard unique string identifier for a digital object

Pronunciation
/ˈdɪʤɪtəl ˈɒbʤɪkt ʌɪˈdɛntɪfʌɪə/
/ˈdɪʤɪdl ˈɑbʤɛkt aɪˈdɛntəˌfaɪər/