diff --git a/php/index.php b/php/index.php
index 243edaa..a45b78f 100644
--- a/php/index.php
+++ b/php/index.php
@@ -14,7 +14,7 @@
                 <img class="logo" src="https://www.ph-freiburg.de/_assets/cc3dd7db45300ecc1f3aeed85bda5532/Images/logo-big-blue.svg" alt="PH Freiburg Logo" />
                 <div class="brand">
                     <div class="brand-title">Bibliothek der Pädagogischen Hochschule Freiburg</div>
-                    <div class="brand-sub">Hochschulbibliothek · Online-Formulare</div>
+                    <div class="brand-sub"><a href="https://www.ph-freiburg.de/bibliothek.html" target="_blank" rel="noopener noreferrer">Hochschulbibliothek</a> · Online-Formulare</div>
                 </div>
             </div>
             <button type="button" id="theme-toggle" class="theme-toggle" aria-label="Switch to dark mode" title="Switch to dark mode">
diff --git a/php/semesterapparat.php b/php/semesterapparat.php
index 064c03e..3ceff35 100644
--- a/php/semesterapparat.php
+++ b/php/semesterapparat.php
@@ -100,12 +100,13 @@
                 <h2>Medien</h2>
                 <table id="book-table" class="data-table">
                     <tr>
-                        <th>Autorenname</th><th>Jahr/Auflage</th><th>Titel</th><th>Signatur (wenn vorhanden)</th>
+                        <th>Autorenname</th><th>Jahr</th><th>Auflage</th><th>Titel</th><th>Signatur (wenn vorhanden)</th>
                     </tr>
                     <tr>
                         <td><input type="text" name="authorname[]" required></td>
                         <td><input type="text" name="year[]" required></td>
-                        <td><input type="text" name="booktitle[]" required></td>
+                        <td><input type="text" name="edition[]" required></td>
+                        <td><input type="text" name="title[]" required></td>
                         <td><input type="text" name="signature[]"></td>
                     </tr>
                 </table>
@@ -125,7 +126,7 @@
                 Hinweis: Weitere Informationen zu den Semesterapparaten finden Sie auf den Seiten der Hochschulbibliothek der PH Freiburg.
                 <br>
                 <a href="https://www.ph-freiburg.de/bibliothek.html" target="_blank" rel="noopener noreferrer">Zur Bibliothek</a>
-                <br>
+                &nbsp;|&nbsp;
                 <a href="https://www.ph-freiburg.de/bibliothek/lernen/semesterapparate.html" target="_blank" rel="noopener noreferrer">Zu den Semesterapparaten</a>
             </p>
         </section>
diff --git a/php/static/styles.css b/php/static/styles.css
index b3f63ad..186dece 100644
--- a/php/static/styles.css
+++ b/php/static/styles.css
@@ -82,7 +82,7 @@ body {
 
 /* Layout */
 .container {
-  max-width: 1250px;
+  /* max-width: 1250px; */
   margin: 0 auto;
   padding: 0 20px;
 }
diff --git a/php/submit_semesterapparat.php b/php/submit_semesterapparat.php
index 7c91425..e70c81e 100644
--- a/php/submit_semesterapparat.php
+++ b/php/submit_semesterapparat.php
@@ -20,8 +20,10 @@ $dauerapparat = isset($_POST['dauerapparat']) ? 'true' : 'false';
 $message = post('message');
 
 // Validate required fields
-if (empty($name) || empty($lastname) || empty($telno) || empty($mail) || 
-    empty($apparatsname) || empty($subject) || empty($semester_type) || empty($semester_year)) {
+if (
+    empty($name) || empty($lastname) || empty($telno) || empty($mail) ||
+    empty($apparatsname) || empty($subject) || empty($semester_type) || empty($semester_year)
+) {
     die('Fehler: Alle Pflichtfelder müssen ausgefüllt werden.');
 }
 
@@ -33,6 +35,7 @@ if (!validateEmail($mail)) {
 // Collect book data
 $authornames = postArray('authorname');
 $years = postArray('year');
+$edition = postArray('edition');
 $booktitles = postArray('booktitle');
 $signatures = postArray('signature');
 
@@ -47,6 +50,7 @@ for ($i = 0; $i < count($authornames); $i++) {
     $books[] = [
         'authorname' => $authornames[$i] ?? '',
         'year' => $years[$i] ?? '',
+        'edition' => $edition[$i] ?? '',
         'title' => $booktitles[$i] ?? '',
         'signature' => $signatures[$i] ?? ''
     ];