Update app.py

app.py

@@ -167,7 +167,7 @@ class CombinedProcessor:
         
         bibtex_entries = []
 
-        corrected_bibliography_entries
+        corrected_bibliography_entries = []
         for entry in bibliography_entries:
             entry = re.sub(r' ?¶ ?', r'¶', entry)
             entry = entry.split("¶¶")