Open Citations: Who’s Citing Who in Peer Reviewed Journals? - Enago Academy

"Several initiatives for open citations exist that seek to provide open citation data to anyone with access to the internet. The Initiative for Open Citations (I4OC) is one such organization that serves as a collaborative body for publishers and researchers. Several publishers, such as BMJ, Springer Nature, MIT Press, Taylor & Francis Group, and SAGE Publishing, are participating in this organization. With the combined efforts of both publishers and researchers, the number of open citations has grown to include 40% of reference data deposited in CrossRef as of March 2017!"