I'm creating a documentation for a Python package and I started to use Sphinx to generate it (using autodoc extension). To enriched it, I'm also using the MyST extension. I'm facing a minor issue trying to include citations. I want to use a Bibtex file so I added the sphinxcontrib.bibtex to my conf.py, I use the role {cite:t}`my_citation` everything is working fine but the citation does not include the year of publication. I tried different bibtex_default_style (the ones given in the documentation: alpha, unrst, plain) but the year is never displayed.

• ./doc/source/conf.py

  
  # -- General configuration ---------------------------------------------------
  # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
  
  extensions = ['myst_nb', 'sphinx.ext.autodoc', 'sphinxcontrib.bibtex']
  
  templates_path = ['_templates']
  exclude_patterns = []
  bibtex_bibfiles = ["references.bib"]
  bibtex_default_style = 'plain'
  
  
  # -- Options for HTML output -------------------------------------------------
  # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
  
  html_theme = 'sphinx_book_theme'
  html_static_path = ['_static']
  

• ./doc/source/references.bib

  @article{knuth:1984,
    title={Literate Programming},
    author={Donald E. Knuth},
    journal={The Computer Journal},
    volume={27},
    number={2},
    pages={97--111},
    year={1984},
    publisher={Oxford University Press}
  }
  

• ./doc/source/my_chapter.md

  # Section
  I want to cite {cite:t}`knuth:1984`.
  
  ---
  **Bibliography**
  ```{bibliography}
  ```
  
  

Result:

Section

I want to cite Knuth [1]

---

Bibliography
[1] Donald E. Knuth. Literate programming. The Computer Journal, 27(2):97–111, 1984.