diff --git a/orcestra_book/_config.yml b/orcestra_book/_config.yml
index 757533a7..dc92782c 100644
--- a/orcestra_book/_config.yml
+++ b/orcestra_book/_config.yml
@@ -25,6 +25,14 @@ repository:
   path_to_book: orcestra_book  # Optional path to your book, relative to the repository root
   branch: main  # Which branch of the repository should be used when creating links (optional)
 
+sphinx:
+  local_extensions:
+    apastyle: _ext/
+    bracket_citation_style: _ext/
+  config:
+    bibtex_default_style: myapastyle
+    bibtex_reference_style: author_year_round
+
 # Add GitHub buttons to your book
 # See https://jupyterbook.org/customize/config.html#add-a-link-to-your-repository
 html:
diff --git a/orcestra_book/_ext/apastyle.py b/orcestra_book/_ext/apastyle.py
new file mode 100644
index 00000000..9b820491
--- /dev/null
+++ b/orcestra_book/_ext/apastyle.py
@@ -0,0 +1,16 @@
+from pybtex.style.formatting.unsrt import Style
+from formatting.apa import APAStyle
+from labels.apa import LabelStyle as APALabelStyle
+from pybtex.plugin import register_plugin
+from pybtex.style.template import names, sentence
+
+class MyAPALabelStyle(APALabelStyle):
+    def format_label(self, entry):
+        return APALabelStyle.format_label(self, entry)
+
+class MyAPAStyle(Style):
+    default_label_style = 'myapa'
+
+def setup(app):
+    register_plugin('pybtex.style.labels', 'myapa', MyAPALabelStyle)
+    register_plugin('pybtex.style.formatting', 'myapastyle', MyAPAStyle)
diff --git a/orcestra_book/_ext/bracket_citation_style.py b/orcestra_book/_ext/bracket_citation_style.py
new file mode 100644
index 00000000..03015acd
--- /dev/null
+++ b/orcestra_book/_ext/bracket_citation_style.py
@@ -0,0 +1,28 @@
+from dataclasses import dataclass, field
+import sphinxcontrib.bibtex.plugin
+
+from sphinxcontrib.bibtex.style.referencing import BracketStyle
+from sphinxcontrib.bibtex.style.referencing.author_year \
+    import AuthorYearReferenceStyle
+
+
+def bracket_style() -> BracketStyle:
+    return BracketStyle(
+        left='(',
+        right=')',
+    )
+
+
+@dataclass
+class MyReferenceStyle(AuthorYearReferenceStyle):
+    bracket_parenthetical: BracketStyle = field(default_factory=bracket_style)
+    bracket_textual: BracketStyle = field(default_factory=bracket_style)
+    bracket_author: BracketStyle = field(default_factory=bracket_style)
+    bracket_label: BracketStyle = field(default_factory=bracket_style)
+    bracket_year: BracketStyle = field(default_factory=bracket_style)
+
+
+def setup(app):
+    sphinxcontrib.bibtex.plugin.register_plugin(
+        'sphinxcontrib.bibtex.style.referencing',
+        'author_year_round', MyReferenceStyle)
diff --git a/orcestra_book/_toc.yml b/orcestra_book/_toc.yml
index 8e56adf7..c9de380b 100644
--- a/orcestra_book/_toc.yml
+++ b/orcestra_book/_toc.yml
@@ -31,3 +31,4 @@ chapters:
 #    - file: publications
 #    - file: conferences
 #- file: news
+- file: references
diff --git a/orcestra_book/references.bib b/orcestra_book/references.bib
index ec380ec4..0bf49256 100644
--- a/orcestra_book/references.bib
+++ b/orcestra_book/references.bib
@@ -1,3 +1,18 @@
 ---
 ---
 
+@article{Frank_1983,
+    title={The Structure and Energetics of the East Atlantic Intertropical Convergence Zone},
+    volume={40},
+    ISSN={1520-0469},
+    url={http://dx.doi.org/10.1175/1520-0469(1983)040<1916:TSAEOT>2.0.CO;2},
+    DOI={10.1175/1520-0469(1983)040<1916:tsaeot>2.0.co;2},
+    number={8},
+    journal={Journal of the Atmospheric Sciences},
+    publisher={American Meteorological Society},
+    author={Frank,
+    William M.},
+    year={1983},
+    month=aug,
+    pages={1916–1929}
+}
diff --git a/orcestra_book/references.md b/orcestra_book/references.md
new file mode 100644
index 00000000..ad708f3b
--- /dev/null
+++ b/orcestra_book/references.md
@@ -0,0 +1,3 @@
+# References
+```{bibliography}
+```
diff --git a/orcestra_book/science.md b/orcestra_book/science.md
index 14d216c2..ec4f6f63 100644
--- a/orcestra_book/science.md
+++ b/orcestra_book/science.md
@@ -15,7 +15,7 @@ Due to this central role, the ITCZ has, of course, already been studied intensel
 Snapshots from VIIRS (NOAA-20) from the 1st of July 2021 until the 15th of July 2021 in the East Atlantic (26°W to 20°W, 0° to 14°N).
 ```
 
-Such deviations from the mean picture of the ITCZ have already been observed during the GATE campaign about 50 years ago and is nicely stated in a paper by Frank (1983):
+Such deviations from the mean picture of the ITCZ have already been observed during the GATE campaign about 50 years ago and is nicely stated in a paper by {cite:t}`Frank_1983`:
 
 > With the introduction of meteorological satellites two decades ago, it became clear that long east-west oriented lindes of maximum cloudiness occur in the mean. However, the lines of maximum mean cloudiness consist only of preferred locations for a variety of complex convective phenomena. At any given time and place along the zonal band containing the ITCZ, there may be deep convective clouds organized into a number of mesoscale patterns or no clouds at all.
 
diff --git a/requirements.txt b/requirements.txt
index 8141b40e..b6c280e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,3 +10,5 @@ requests
 aiohttp
 zarr>=2.8.3
 healpy
+pybtex-apa-style
+docutils==0.17.1  # see https://github.com/executablebooks/jupyter-book/issues/1997