diff --git a/02-data/intermediate/zotero-library.bib b/02-data/intermediate/zotero-library.bib
index 2d74d55..7632ee6 100644
--- a/02-data/intermediate/zotero-library.bib
+++ b/02-data/intermediate/zotero-library.bib
@@ -11952,6 +11952,21 @@ does NOT look at inequalities affected}
   keywords = {sample::snowballing}
 }
 
+@article{Cook1995,
+  title = {Methodologic Guidelines for Systematic Reviews of Randomized Control Trials in Health Care from the Potsdam Consultation on Meta-Analysis},
+  author = {Cook, D.J. and Sackett, D.L. and Spitzer, W.O.},
+  year = {1995},
+  month = jan,
+  journal = {Journal of Clinical Epidemiology},
+  volume = {48},
+  number = {1},
+  pages = {167--171},
+  issn = {08954356},
+  doi = {10.1016/0895-4356(94)00172-M},
+  urldate = {2024-02-20},
+  langid = {english}
+}
+
 @article{Cook2000,
   title = {Vocational {{Rehabilitation}} for {{Persons With Schizophrenia}}: {{Recent Research}} and {{Implications}} for {{Practice}}},
   shorttitle = {Vocational {{Rehabilitation}} for {{Persons With Schizophrenia}}},