I would not recommend org-ref-cite (https://github.com/jkitchin/org-ref-cite
). It was an early approach to trying to integrate org-ref with oc-cite. As far as I know, it worked fine for that, and was pretty complete for citations, but I have abandoned this approach and archived the repo. If anyone would like to take over this repo I would be happy to transfer it.
If you are looking for something above and beyond the default oc-cite capabilities, https://github.com/bdarcus/citar
is probably a better choice than org-ref-cite as it is actively developed.