CrossRef Indicators
Updated December 7, 2009
Total no. participating publishers & societies 2,927
% of non-profit publishers 57%
Total no. participating libraries 1,533
No. journals covered 21,002
No. DOIs registered to date 39,185,809
No. DOIs deposited in previous month 418,659
No. DOIs retrieved (matched references) in previous month 20,414,782
DOI resolutions (end-user clicks) in previous month 30,337,007