bibliography.md

# How the bibliography is made

References are stored in a bibtex file. The XML file contains
citations that are similar to a LaTeX citation command.

During processing, the bibtex file and the bibliography and citation
type (anthology or monograph, numeric or author/year) are read out of
the XML source file.

`pandoc-citeproc` is used to construct a JSON file out of the bibtex
database. This is helpful during the next parts of processing.

<!--
 !-- What exactly is it used for? Just for putting the title in the popover element?
  -->

The next step formats the bibliography, depending on the bibliography
type, as a complete list or as per-chapter-list. In the second case,
several markdown and html files are created, one for each chapter.
They are named after the `xml:id` of the chapter.

The function `format_citations` then creates two outputs: the list of
references, formatted in html and a dictionary with the citekey as
headword and three manifestations of the data (author-year-citation,
year-citation and title).