diff --git a/docs/source/research.bib b/docs/source/research.bib
index a2abea47..7fae86b6 100644
--- a/docs/source/research.bib
+++ b/docs/source/research.bib
@@ -1,4 +1,14 @@
 %%% ARXIV TO BE UPDATED %%%
+@article{Hollett2019Aug,
+        author = {Hollett, Joshua W. and Loos, Pierre-Fran{\c{c}}ois},
+        title = {{Capturing static and dynamic correlation with $\Delta \text{NO}$-MP2 and $\Delta \text{NO}$-CCSD}},
+        journal = {arXiv},
+        year = {2019},
+        month = {Aug},
+        eprint = {1908.09914},
+        url = {https://arxiv.org/abs/1908.09914}
+}
+
 @article{Giner2019Jul,
         author = {Giner, Emmanuel and Scemama, Anthony and Toulouse, Julien and Loos, Pierre-Fran{\c{c}}ois},
         title = {{Chemically Accurate Excitation Energies With Small Basis Sets}},