diff --git a/prepare_tei.py b/prepare_tei.py
index fccf00c..e5a424a 100644
--- a/prepare_tei.py
+++ b/prepare_tei.py
@@ -322,6 +322,8 @@ def main():
     with open(args.teifile, 'r') as xmlfile:
         xml_tree = etree.parse(xmlfile)
 
+    report = {}
+
     ################
     # bibliography #
     ################
@@ -337,7 +339,9 @@ def main():
     mod_string, cited = convert_citations(xml_string)
 
     used_citekeys = [unescape(c[1]) for c in cited]
-    validate_citations(used_citekeys, bibdata)
+    not_cited = validate_citations(used_citekeys, bibdata)
+
+    report["not_cited"] = not_cited
 
     mod_string2 = convert_figures(mod_string)
 
@@ -392,7 +396,8 @@ def main():
                       'tabdict' : dictTables,
                       'pagelabeldict' : dictPagelabels}
 
-
+    if not os.path.exists("tmp_files/"):
+        os.makedirs(os.path.expanduser("tmp_files/"))
 
     with open('tmp_files/data.pickle', 'wb') as f:
         # Pickle the 'data' dictionary using the highest protocol available.