CrossRef Indicators
Updated December 21, 2011
Total no. participating publishers & societies 3698
% of non-profit publishers 57%
Total no. participating libraries 1,804
No. journals covered 26,510
No. DOIs registered to date 51,419,529
No. DOIs deposited in previous month 991,082
No. DOIs retrieved (matched references) in previous month 18,778,773
DOI resolutions (end-user clicks) in previous month 52,971,970