From 4432cf362831ad5e181dd494efa58882f0c55303 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Wed, 17 May 2017 16:14:53 +0200
Subject: add r4r reference, review comment and related work remark

---
 doc/paper/taler.bib | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'doc/paper/taler.bib')

diff --git a/doc/paper/taler.bib b/doc/paper/taler.bib
index 5d59d31be..1d3fcd98f 100644
--- a/doc/paper/taler.bib
+++ b/doc/paper/taler.bib
@@ -258,6 +258,15 @@
   publisher={Rand Corporation}
 }
 
+@inproceedings{rupp2013p4r,
+  title={P4R: Privacy-preserving pre-payments with refunds for transportation systems},
+  author={Rupp, Andy and Hinterw{\"a}lder, Gesine and Baldimtsi, Foteini and Paar, Christof},
+  booktitle={International Conference on Financial Cryptography and Data Security},
+  pages={205--212},
+  year={2013},
+  organization={Springer}
+}
+
 
 @article{OneMoreInversion,
   author="Bellare and Namprempre and Pointcheval and Semanko",
-- 
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