diff --git a/paper/paper.bib b/paper/paper.bib
index 2de9b0f2..8d5b981b 100644
--- a/paper/paper.bib
+++ b/paper/paper.bib
@@ -17,6 +17,48 @@ @ARTICLE{Blunt:2020
       adsnote = {Provided by the SAO/NASA Astrophysics Data System}
 }
 
+@ARTICLE{Thompson:2023,
+       author = {{Thompson}, William and {Lawrence}, Jensen and {Blakely}, Dori and {Marois}, Christian and {Wang}, Jason and {Giordano}, Mos{\'e} and {Brandt}, Timothy and {Johnstone}, Doug and {Ruffio}, Jean-Baptiste and {Ammons}, S. Mark and {Crotts}, Katie A. and {Do {\'O}}, Clarissa R. and {Gonzales}, Eileen C. and {Rice}, Malena},
+        title = "{Octofitter: Fast, Flexible, and Accurate Orbit Modeling to Detect Exoplanets}",
+      journal = {\aj},
+     keywords = {Exoplanet detection methods, Bayesian statistics, Direct imaging, 489, 1900, 387, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics},
+         year = 2023,
+        month = oct,
+       volume = {166},
+       number = {4},
+          eid = {164},
+        pages = {164},
+          doi = {10.3847/1538-3881/acf5cc},
+archivePrefix = {arXiv},
+       eprint = {2402.01971},
+ primaryClass = {astro-ph.EP},
+       adsurl = {https://ui.adsabs.harvard.edu/abs/2023AJ....166..164T},
+      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+}
+
+
+
+@ARTICLE{Brandt:2021,
+       author = {{Brandt}, Timothy D. and {Dupuy}, Trent J. and {Li}, Yiting and {Brandt}, G. Mirek and {Zeng}, Yunlin and {Michalik}, Daniel and {Bardalez Gagliuffi}, Daniella C. and {Raposo-Pulido}, Virginia},
+        title = "{orvara: An Efficient Code to Fit Orbits Using Radial Velocity, Absolute, and/or Relative Astrometry}",
+      journal = {\aj},
+     keywords = {Orbit determination, Keplerian orbit, Astronomy software, Exoplanet astronomy, Astrometric exoplanet detection, Radial velocity, 1175, 884, 1855, 486, 2130, 1332, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics},
+         year = 2021,
+        month = nov,
+       volume = {162},
+       number = {5},
+          eid = {186},
+        pages = {186},
+          doi = {10.3847/1538-3881/ac042e},
+archivePrefix = {arXiv},
+       eprint = {2105.11671},
+ primaryClass = {astro-ph.IM},
+       adsurl = {https://ui.adsabs.harvard.edu/abs/2021AJ....162..186B},
+      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+}
+
+
+
 @ARTICLE{ONeil:2019,
        author = {{O'Neil}, K. Kosmo and {Martinez}, G.~D. and {Hees}, A. and {Ghez}, A.~M. and {Do}, T. and {Witzel}, G. and {Konopacky}, Q. and {Becklin}, E.~E. and {Chu}, D.~S. and {Lu}, J.~R. and {Matthews}, K. and {Sakai}, S.},
         title = "{Improving Orbit Estimates for Incomplete Orbits with a New Approach to Priors: with Applications from Black Holes to Planets}",
diff --git a/paper/paper.md b/paper/paper.md
index 2c400df1..4a8e8b5e 100644
--- a/paper/paper.md
+++ b/paper/paper.md
@@ -162,8 +162,7 @@ and an in-progress ["manual"](https://orbitize.readthedocs.io/en/orbitize-manual
 # Comparison to Similar Packages
 
 Since the release of `orbitize!` version 1, other open-source packages have been released that have 
-similar goals to `orbitize!`, notably `orvara` and `octofitter`. This is a wonderful development, as 
-each package has benefitted from open sharing of knowledge. `orbitize!`, `orvara`, and `octofitter` can 
+similar goals to `orbitize!`, notably `orvara` [@Brandt:2021] and `octofitter` [@Thompson:2023]. This is a wonderful development, since all packages benefit from open sharing of knowledge! `orbitize!`, `orvara`, and `octofitter` can 
 do many similar things, but each has unique features and strengths; as an example, `octofitter` is 
 extraordinarily fast, and enables joint astrometry extraction and orbit modeling, while `orbitize!` has unique 
 abilities to fit arbitrary absolute astrometry (i.e. not from Hipparcos or Gaia) and model data using an N-body backend.