Link to Literature Note in Sidebar

[Otatea]

I would be useful to have a button on each index card which is a link to the corresponding literature note. I name all my literature notes exactly like the citekey (e.g. "@mykey.md").
This Feature would need a template-texbox for describing the name of one corresponding note. If no note can be found (which fits the template) this link-button shouldnt be visible.