diff --git a/src/Entities/FieldList.php b/src/Entities/FieldList.php
index 851951f..8b98bea 100644
--- a/src/Entities/FieldList.php
+++ b/src/Entities/FieldList.php
@@ -1,10 +1,22 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use Doctrine\Common\Collections\ArrayCollection;
 
 class FieldList extends ArrayCollection
 {
-
-}
\ No newline at end of file
+}
diff --git a/src/Entities/Subscriber.php b/src/Entities/Subscriber.php
index 0d7a76a..d9f8c15 100644
--- a/src/Entities/Subscriber.php
+++ b/src/Entities/Subscriber.php
@@ -1,5 +1,18 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use DateTime;
@@ -181,4 +194,4 @@ class Subscriber extends ArrayCollection
     {
         return in_array($tagId, $this->getTags());
     }
-}
\ No newline at end of file
+}
diff --git a/src/Entities/SubscriberList.php b/src/Entities/SubscriberList.php
index 5ea8daf..bbc48a5 100644
--- a/src/Entities/SubscriberList.php
+++ b/src/Entities/SubscriberList.php
@@ -1,10 +1,22 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use Doctrine\Common\Collections\ArrayCollection;
 
 class SubscriberList extends ArrayCollection
 {
-
-}
\ No newline at end of file
+}
diff --git a/src/Entities/Subscription.php b/src/Entities/Subscription.php
index 3aa3207..3ac7657 100644
--- a/src/Entities/Subscription.php
+++ b/src/Entities/Subscription.php
@@ -1,5 +1,18 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use Doctrine\Common\Collections\ArrayCollection;
@@ -45,4 +58,4 @@ class Subscription extends ArrayCollection
     {
         return $this->get('usechangeemail');
     }
-}
\ No newline at end of file
+}
diff --git a/src/Entities/SubscriptionList.php b/src/Entities/SubscriptionList.php
index 50d98f6..87bffe0 100644
--- a/src/Entities/SubscriptionList.php
+++ b/src/Entities/SubscriptionList.php
@@ -1,10 +1,22 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use Doctrine\Common\Collections\ArrayCollection;
 
 class SubscriptionList extends ArrayCollection
 {
-
-}
\ No newline at end of file
+}
diff --git a/src/Entities/Tag.php b/src/Entities/Tag.php
index 0a53926..ef69550 100644
--- a/src/Entities/Tag.php
+++ b/src/Entities/Tag.php
@@ -1,5 +1,18 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use Doctrine\Common\Collections\ArrayCollection;
@@ -20,4 +33,4 @@ class Tag extends ArrayCollection
     {
         return $this->get('text');
     }
-}
\ No newline at end of file
+}
diff --git a/src/Entities/TagList.php b/src/Entities/TagList.php
index 973fec7..cd76038 100644
--- a/src/Entities/TagList.php
+++ b/src/Entities/TagList.php
@@ -1,10 +1,22 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Entities;
 
 use Doctrine\Common\Collections\ArrayCollection;
 
 class TagList extends ArrayCollection
 {
-
-}
\ No newline at end of file
+}
diff --git a/src/Resources/SubscriptionProcess.php b/src/Resources/SubscriptionProcess.php
index 48510ba..5c67e9b 100644
--- a/src/Resources/SubscriptionProcess.php
+++ b/src/Resources/SubscriptionProcess.php
@@ -1,5 +1,18 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Resources;
 
 use D3\KlicktippPhpClient\Entities\Subscription as SubscriptionEntity;
@@ -49,7 +62,7 @@ class SubscriptionProcess extends Model
                     RequestOptions::FORM_PARAMS => [
                         'listid'    => trim($listId),
                         'email'     => trim($email),
-                    ]
+                    ],
                 ]
             )
         );
diff --git a/src/Resources/Tag.php b/src/Resources/Tag.php
index 80ad04b..6636e4a 100644
--- a/src/Resources/Tag.php
+++ b/src/Resources/Tag.php
@@ -1,5 +1,18 @@
 <?php
 
+/**
+ * Copyright (c) D3 Data Development (Inh. Thomas Dartsch)
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ *
+ * https://www.d3data.de
+ *
+ * @copyright (C) D3 Data Development (Inh. Thomas Dartsch)
+ * @author    D3 Data Development - Daniel Seifert <info@shopmodule.com>
+ * @link      https://www.oxidmodule.com
+ */
+
 namespace D3\KlicktippPhpClient\Resources;
 
 use D3\KlicktippPhpClient\Entities\Tag as TagEntity;
@@ -46,8 +59,8 @@ class Tag extends Model
             'tag/',
             [
                 RequestOptions::FORM_PARAMS => [
-                    'name'    => trim($name)
-                ]
+                    'name'    => trim($name),
+                ],
             ]
         );
     }
@@ -62,8 +75,8 @@ class Tag extends Model
             'tag/'.urlencode(trim($tagId)),
             [
                 RequestOptions::FORM_PARAMS => [
-                    'name'    => trim($newName)
-                ]
+                    'name'    => trim($newName),
+                ],
             ]
         );
     }