diff --git a/python/lvmnps/actor/actor.py b/python/lvmnps/actor/actor.py
index c76bb10..dee164e 100644
--- a/python/lvmnps/actor/actor.py
+++ b/python/lvmnps/actor/actor.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# @Author: Mingyeong YANG (mingyeong@khu.ac.kr), Florian Briegel (briegel@mpia.de)
+# @Author: Changgon Kim, Mingyeong YANG (mingyeong@khu.ac.kr), Florian Briegel (briegel@mpia.de)
 # @Date: 2021-03-22
 # @Filename: lvmnps/actor/actor.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)
diff --git a/python/lvmnps/actor/commands/onoff.py b/python/lvmnps/actor/commands/onoff.py
index bf53052..4f862be 100644
--- a/python/lvmnps/actor/commands/onoff.py
+++ b/python/lvmnps/actor/commands/onoff.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# @Author: Florian Briegel (briegel@mpia.de)
+# @Author: Florian Briegel (briegel@mpia.de), Changgon Kim
 # @Date: 2021-08-12
 # @Filename: onoff.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)
diff --git a/python/lvmnps/actor/commands/reachable.py b/python/lvmnps/actor/commands/reachable.py
index 2ee9b62..480dd8a 100644
--- a/python/lvmnps/actor/commands/reachable.py
+++ b/python/lvmnps/actor/commands/reachable.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# @Author: Mingyeong Yang(mingyeong@khu.ac.kr)
+# @Author: Mingyeong Yang(mingyeong@khu.ac.kr), Changgon Kim
 # @Date: 2021-08-30
 # @Filename: device.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)
diff --git a/python/lvmnps/actor/commands/status.py b/python/lvmnps/actor/commands/status.py
index 6c25457..34e77d4 100644
--- a/python/lvmnps/actor/commands/status.py
+++ b/python/lvmnps/actor/commands/status.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 #
-# @Author: Florian Briegel (briegel@mpia.de)
+# @Author: Florian Briegel (briegel@mpia.de), Changgon Kim
 # @Date: 2021-08-12
 # @Filename: status.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)
diff --git a/python/lvmnps/switch/dummy/powerswitch.py b/python/lvmnps/switch/dummy/powerswitch.py
index ebd5c26..1182aae 100644
--- a/python/lvmnps/switch/dummy/powerswitch.py
+++ b/python/lvmnps/switch/dummy/powerswitch.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# @Author: Florian Briegel (briegel@mpia.de)
+# @Author: Florian Briegel (briegel@mpia.de), Changgon Kim
 # @Date: 2021-06-24
 # @Filename: lvmnps/switch/dummy/powerswitch.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)
diff --git a/python/lvmnps/switch/factory.py b/python/lvmnps/switch/factory.py
index 524164c..23037a4 100644
--- a/python/lvmnps/switch/factory.py
+++ b/python/lvmnps/switch/factory.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# @Author: Florian Briegel (briegel@mpia.de)
+# @Author:  Florian Briegel (briegel@mpia.de), Changgon Kim
 # @Date: 2021-06-22
 # @Update: 2021-10-09
 # @Filename: lvmnps/switch/factory.py
diff --git a/python/lvmnps/switch/outlet.py b/python/lvmnps/switch/outlet.py
index 1c30ba3..cfbaddb 100644
--- a/python/lvmnps/switch/outlet.py
+++ b/python/lvmnps/switch/outlet.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# @Author: Florian Briegel (briegel@mpia.de)
+# @Author:  Florian Briegel (briegel@mpia.de), Changgon Kim
 # @Date: 2021-06-22
 # @Filename: lvmnps/switch/outlet.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)
diff --git a/python/lvmnps/switch/powerswitchbase.py b/python/lvmnps/switch/powerswitchbase.py
index 16da933..dc6ac2f 100644
--- a/python/lvmnps/switch/powerswitchbase.py
+++ b/python/lvmnps/switch/powerswitchbase.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# @Author: Florian Briegel (briegel@mpia.de)
+# @Author: Florian Briegel (briegel@mpia.de), Changgon Kim
 # @Date: 2021-06-24
 # @Filename: lvmnps/switch/powerswitchbase.py
 # @License: BSD 3-clause (http://www.opensource.org/licenses/BSD-3-Clause)