diff --git a/test_files/test_plugin.py b/test_files/test_plugin.py
index e87e89d..4c41e52 100644
--- a/test_files/test_plugin.py
+++ b/test_files/test_plugin.py
@@ -224,6 +224,17 @@ def test_on_page_markdown(plugin):
         in plugin.on_page_markdown(test_markdown, None, None, None)
     )
 
-    test_markdown = "This is a citation. [@test] This is another citation [@test2]\n\n \\bibliography"
+    test_markdown = "This is a citation. [@test2] This is another citation [@test]\n\n \\bibliography"
     # ensure there are two items in bibliography
+
     assert "[^2]:" in plugin.on_page_markdown(test_markdown, None, None, None)
+
+    # Ensure if an item is referenced multiple times, it only shows up as one reference
+    test_markdown = "This is a citation. [@test] This is another citation [@test]\n\n \\bibliography"
+
+    assert "[^2]" not in plugin.on_page_markdown(test_markdown, None, None, None)
+
+    # Ensure item only shows up once even if used in multiple places as both a compound and lone cite key
+    test_markdown = "This is a citation. [@test; @test2] This is another citation [@test]\n\n \\bibliography"
+
+    assert "[^3]" not in plugin.on_page_markdown(test_markdown, None, None, None)