diff --git a/sources/tech/20180612 7 open source tools to make literature reviews easy.md b/sources/tech/20180612 7 open source tools to make literature reviews easy.md
index 96edb68eff..674f4ea44b 100644
--- a/sources/tech/20180612 7 open source tools to make literature reviews easy.md	
+++ b/sources/tech/20180612 7 open source tools to make literature reviews easy.md	
@@ -1,3 +1,4 @@
+translated by lixinyuxx
 7 open source tools to make literature reviews easy
 ======