Open Citation Data reach critical Milestone

Last Friday the OpenCitations blog published a guest post by Alberto Martín-Martín that describes the coverage by COCI and other open citation data compared to subscription citation indexes. This is an important blog post, as it changes how we think about citations and open metrics.


This is a companion discussion topic for the original entry at https://blog.front-matter.io/posts/open-citation-data-reach-critical-milestone