Project lead for BookBrainz here. This is definitely something that we want, and something that is currently supported: in the current data model, you can add a journal as a publication, editions as edition entities, and any individual articles or papers you want as works. You can then link the works to the edition they appear in. I think you can also add a “references” relationship between two works.
One day I hope we can create a sort of visual representation of references between academic texts, so you can easily find key works in any subject area and learn prerequisite knowledge before attempting to dive in to a highly technical paper. But that’s quite a way off and probably better as a side project