CrossRef Indicators
CROSSREF INDICATORS (April 06, 2009)
Total no. participating publishers & societies 2,749
% of non-profit publishers 64%
Total no. participating libraries 1,459
No. journals covered 20,018
No. DOIs registered to date 36,320,570
No. DOIs deposited in previous month 591,179
No. DOIs retrieved (matched references) in previous month 18,460,230
DOI resolutions (end-user clicks) in previous month 31,513,177