2020 Volume 30 Issue 1 Pages 21-41
We aimed at clarifying the characteristics of the Wikipedia editors who had added Digital Object Identifier (DOI) links to English Wikipedia as scholarly bibliographic references. The results are summarized as follows: (1) Approximately 930 thousand items classifiable into 22 research fields based on the Essential Science Indicators are identified by using DOI links. These items were added by 34,062 users, 31 bots, and 16,349 IP users. (2) Concentration in the number of DOI links on English Wikipedia added by Wikipedia editors is high as a whole (Gini coefficient 0.93), and most research fields’values are also high in common, due to the editors who added DOI links systematically to the existing references on a large scale.