From e0b97ed43f8da81ee5865d151ebad7e1d60a55bd Mon Sep 17 00:00:00 2001
From: KatolaZ <katolaz@yahoo.it>
Date: Thu, 23 Apr 2015 12:13:30 +0100
Subject: Small change to README.md

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 README.md | 6 ++++++
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 # multired
 Algorithm for structural reduction of multi-layer networks
+
+Please cite:
+
+M. De Domenico. V. Nicosia, A. Arenas, V. Latora
+"Structural reducibility of multilayer networks", 
+Nat. Commun. 7864 (2015) doi:10.1038/ncomms7864
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