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diff --git a/articles/ui/taler.bib b/articles/ui/taler.bib
index 9117398f7..b59d43a41 100644
--- a/articles/ui/taler.bib
+++ b/articles/ui/taler.bib
@@ -171,3 +171,22 @@
   www_pdf_url = {https://www.torproject.org/svn/trunk/doc/design-paper/tor-design.pdf},
   www_section = {Anonymous communication},
 }
+
+
+
+@misc{brands1993efficient,
+  title={An efficient off-line electronic cash system based on the representation problem},
+  author={Brands, Stefan A},
+  year={1993},
+  publisher={Centrum voor Wiskunde en Informatica}
+}
+
+@misc{ECB:TRoCF2014,
+  title     = {Third Report on Card Fraud},
+  publisher = {European Central Bank},
+  month     = {February},
+  year      = {2014},
+  howpublished = {\url{https://www.ecb.europa.eu/pub/pdf/other/cardfraudreport201402en.pdf}},
+}
+
+