Update README.md

README.md

@@ -31,3 +31,35 @@ pip install -e git+https://github.com/emilyhunt/ocelot[dev]
 ```
 
 After installing development dependencies, you can also make and view edits to the package's documentation. To view a local copy of the documentation, do `mkdocs serve`. You can do a test build with `mkdocs build`.
+
+
+## Citation
+
+There is currently no paper associated with `ocelot`. For now, please at least mention the package and add a footnote to your mention, linking to this repository - in LaTeX, that would be:
+
+```
+\footnote{\url{https://github.com/emilyhunt/ocelot}}
+```
+
+
+For now, you can also cite [Hunt & Reffert 2021](https://ui.adsabs.harvard.edu/abs/2021A%26A...646A.104H/abstract), which was the paper for which development of this module began:
+
+```
+@ARTICLE{2021A&A...646A.104H,
+       author = {{Hunt}, Emily L. and {Reffert}, Sabine},
+        title = "{Improving the open cluster census. I. Comparison of clustering algorithms applied to Gaia DR2 data}",
+      journal = {\aap},
+     keywords = {methods: data analysis, open clusters and associations: general, astrometry, Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics},
+         year = 2021,
+        month = feb,
+       volume = {646},
+          eid = {A104},
+        pages = {A104},
+          doi = {10.1051/0004-6361/202039341},
+archivePrefix = {arXiv},
+       eprint = {2012.04267},
+ primaryClass = {astro-ph.GA},
+       adsurl = {https://ui.adsabs.harvard.edu/abs/2021A&A...646A.104H},
+      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+}
+```