From b8d771e3aff60a0285719a0aaabec30338597c9a Mon Sep 17 00:00:00 2001
From: qianqianzhu <qianqian.zhu@hotmail.com>
Date: Thu, 20 Jul 2017 16:28:52 +0800
Subject: [PATCH] add ref for SLR

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index e4b63dc..06a9314 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # Mutation Testing Literature Survey Metadata
 sharing metadata related to our literature survey on mutation testing
+
+Zhu Q, Panichella A, Zaidman A. (2016) A systematic literature review of how mutation testing supports test activities. PeerJ Preprints 4:e2483v1 https://doi.org/10.7287/peerj.preprints.2483v1