CrossRef Indicators
Updated March 5, 2012
Total no. participating publishers & societies 3800
% of non-profit publishers 57%
Total no. participating libraries 1,834
No. journals covered 27,234
No. DOIs registered to date 52,777,621
No. DOIs deposited in previous month 503,982
No. DOIs retrieved (matched references) in previous month 21,393,181
DOI resolutions (end-user clicks) in previous month n/a