diff --git a/chapters/Introduction.lyx b/chapters/Introduction.lyx
index 35c4158..925eadb 100644
--- a/chapters/Introduction.lyx
+++ b/chapters/Introduction.lyx
@@ -10,7 +10,6 @@
 
 
 \usepackage{xcolor}
-\usepackage[sort]{natbib}
 %\graphicspath{{figures/}}
 \usepackage{hyperref}
 \end_preamble
diff --git a/chapters/Publication.lyx b/chapters/Publication.lyx
index 1d35df4..c29647c 100644
--- a/chapters/Publication.lyx
+++ b/chapters/Publication.lyx
@@ -8,7 +8,7 @@
 \begin_preamble
 %Created by jmcui 
 
-\usepackage{bibentry,natbib}
+\usepackage{bibentry}
 \usepackage{hyperref}
 %\graphicspath{{figures/}}
 \end_preamble
diff --git a/release.sh b/release.sh
index beb8dc3..6717060 100755
--- a/release.sh
+++ b/release.sh
@@ -15,12 +15,12 @@ cp ./ustcthesis/ustcthesis.cls ./release/
 cp -R ./ustcthesis/figures ./release/
 cp ./USTCthesis.layout ./release/
 
-
-cp -R ./chapters ./release/
+mkdir ./release/chapters
+cp ./chapters/*.lyx ./release/chapters/
 cp ./ustcthesis/ustcthesis.cls ./release/chapters/
 cp ./USTCthesis.layout ./release/chapters/
 
-FINDED_FILES=`find ./release/chapters -name *.lyx~`
+FINDED_FILES=`find . -name *.lyx~`
 for file in ${FINDED_FILES}
 do
     rm -rf ${file}