« CrossRef Indicators | Main | CrossRef Indicators »

DOIs registered in CrossRef by century

Breakdown of DOIs in CrossRef by century.

Century  DOI Count
17th      1,674
18th      4,436
19th      381,187
20th      15,750,357
21st       8,031,503
Total      24,169,157

Posted by Anna Tolwinska on May 17, 2007 9:27 AM |

Post a comment

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)