As far as I know, the only indexing services which track citation across journals and data repositories are accessed for a fee. Are there any free-to-use databases of article or data citation indices ?
closed as off-topic by Coder, Buzz, scaaahu, Enthusiastic Engineer, user3209815 Mar 8 '18 at 7:54
This question appears to be off-topic. The users who voted to close gave this specific reason:
- ""Shopping" questions, which seek recommendations or lists of individual universities, academic programs, publishers, journals, research topics or similar as an answer or seek an assessment or comparison of such, are off-topic here. (See this discussion for more information.)" – Coder, Buzz, scaaahu, Enthusiastic Engineer, user3209815
I work for a biomedical literature database - Europe PMC, which makes citation data freely available. You can access it programmatically, via the articles API (https://europepmc.org/RestfulWebService#cites). This resource also tracks data citations for over 20 different public resources: https://europepmc.org/Help#trackdatacit