diff --git a/papers/CasperTFG/ethereum.bib b/papers/CasperTFG/ethereum.bib
index 739eb6b..81c04b6 100644
--- a/papers/CasperTFG/ethereum.bib
+++ b/papers/CasperTFG/ethereum.bib
@@ -36,9 +36,18 @@
   Month = {11},
 }
 
-@misc{paxos,
+@article{paxos,
   title={Paxos Made Moderately Complex},
-  url={http://paxos.systems/},
+  author = "ROBBERT VAN RENESSE and DENIZ ALTINBUKEN",
+  year = "2015",
+  month = "April",
+  doi = "http://dx.doi.org/10.1145/2673577",
+  journal = "ACM Comput. Surv.",
+  volume = "47",
+  number = "3",
+  address = "New York, NY, USA",
+  note = "Article no. 42",
+  url={http://www.cs.cornell.edu/courses/cs7412/2011sp/paxos.pdf},
 }
 
 @article{lamport_1998,