I discovered this by accident today but I think it's important.
Making this relationship more formal and more than a one-way hyperlink would be beneficial: for authors to show use and reuse of their work and for users looking for similar data sets.
I found this "citation" indirectly through a Google search.
More formal relationship tracking and association is in plan for our V1 of custom metadata changes planned to begin at the backend of this year. I'd expect to start seeing results in Q1 2020