The `citar-denote' (https://github.com/pprevos/citar-denote)
package provides the ability to link bibliographic entries and
notes.  This subpackage provides some further `universal-sidecar'
sections.  These are as follows:

 - `denote-citar-sections-abstract-section' will display a
   formatted abstract if available.
- `denote-citar-sections-reference-section' will display a
  formatted reference.