diff --git a/dev/demo/tutorial.html b/dev/demo/tutorial.html
index 7c4a87f..70e76ae 100644
--- a/dev/demo/tutorial.html
+++ b/dev/demo/tutorial.html
@@ -13,7 +13,7 @@
 -->
 	<nav>
 	  <ul>
-	    <li><a href="/doc/korap" class="active">KorAP</a>
+	    <li><a href="/doc/development" class="active">KorAP</a>
 	      <ul>
 		<!-- Versionsnummer -->
 		<li><a href="/doc/kalamar">Kalamar</a></li>
diff --git a/dev/img/korap-overview-active.svg b/dev/img/korap-overview-active.svg
index afe7d4c..a2e8bc5 100644
--- a/dev/img/korap-overview-active.svg
+++ b/dev/img/korap-overview-active.svg
@@ -107,7 +107,7 @@
     </style>
   </defs>
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+    <a id="kalamar" xlink:href="doc/development/kalamar" target="_parent">
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-    <a xlink:href="doc/korap/kustvakt" id="kustvakt" target="_parent">
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-    <a id="koral" xlink:href="doc/korap/koral" target="_parent">
+    <a id="koral" xlink:href="doc/development/koral" target="_parent">
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diff --git a/dev/img/korap-overview.svg b/dev/img/korap-overview.svg
index 1e2837c..9f2fea6 100644
--- a/dev/img/korap-overview.svg
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8.217 11.656 2.19-1.458 4.315-3.046 6.313-4.75-1.54-1.962-4.307-5.912-6.188-11.063l2.188-1.28c1.384 3.555 4.66 7.756 6.563 10.03 1.678-1.578 3.265-3.223 4.78-4.937-1.303-1.502-3.716-4.475-5.937-8.656l1.657-1.438c2.852 4.352 5.25 6.403 6.625 7.344 1.49-1.85 2.862-3.778 4.156-5.72-.8-.572-2.465-1.914-5.407-6.28l1.625-1.813c2.73 3.448 4.723 4.635 5.72 5.063 1.014-1.684 1.952-3.386 2.812-5.094-.937-.52-2.9-1.806-4.813-4.5l1.408-2.03c2.27 2.673 4.257 3.253 4.843 3.374.93-2.092 1.728-4.186 2.408-6.25-.783-.157-2.056-.71-4.282-2.28l.875-1.782c1.612 1.084 3.066 1.732 4.064 2.124 2.572-8.79 2.74-16.956-.063-22.75zm-64.405 3.75c-.57.038-1.17.308-1.72.844-1.268 1.244 3.377 2.123 3.564 7 2.793-3.976.626-8.004-1.845-7.844zm-6.406 6.594c-.435.01-.91.18-1.376.5-1.3.895 2.612 2.36 2.03 6.656 3.17-3.172 1.685-7.207-.655-7.156zm-4.908 7.063c-.41.03-.852.17-1.28.5-1.193.917 2.58 2.16 2.25 6.28 2.853-3.182 1.254-6.95-.97-6.78zm-5.718 6.093c-.336.026-.697.158-1.063.374-1.272.755 2.286 2.393 1.47 6.376 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14.657-14.353-8.004-3.56-14.494-12.093-14.688zm-32.688 2.187c-4.257.064-5.76 10.276 7.47 14.78-9.91-9.707.312-12.57-6.595-14.624-.303-.09-.59-.16-.874-.155zm20.907.78c-5.106.123-5.405 12.193 10.343 14.782-12.57-8.78-1.94-13.766-9.843-14.75-.175-.022-.336-.034-.5-.03zm-10.594 1c-4.47.46-5.096 11.325 9.217 14.845-11.304-9.291-.804-13.257-8.25-14.78-.328-.068-.67-.094-.968-.064z" id="krill-logo"/>
     </a>
-    <a id="karang" xlink:href="doc/korap/karang" target="_parent">
+    <a id="karang" xlink:href="doc/development/karang" target="_parent">
       <rect width="367.403" height="166.995" rx="31" ry="31" x="778.493" y="187.33" class="blue" />
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1.157-1.22-1.22-1.156zm18.344 1l-.095 1.687 1.656.095.126-1.656-1.687-.126zm-15.94 1.312l-1.155 1.22 1.22 1.155 1.155-1.217-1.22-1.157zm15.72 2.03l-.094 1.69 1.657.093.125-1.658-1.688-.125zm-13.28.283l-1.158 1.217 1.22 1.157 1.155-1.22-1.218-1.155zm2.405 2.31l-1.156 1.22 1.217 1.156 1.157-1.22-1.22-1.155zm10.656.75l-.092 1.69 1.656.092.125-1.656-1.69-.125zm-8.217 1.564l-1.157 1.22 1.188 1.155 1.156-1.22-1.188-1.156zm6.843 5.156c1.768 0 3.594 1.826 3.594 3.594 0 1.768-1.826 3.562-3.594 3.562-1.768 0-3.562-1.794-3.562-3.562 0-1.768 1.794-3.594 3.562-3.594zm-47.968 12.656c1.767 0 3.562 1.826 3.562 3.594 0 1.768-1.795 3.563-3.563 3.563-1.767 0-3.593-1.795-3.593-3.563 0-1.768 1.826-3.594 3.593-3.594z" id="karang-logo"/>
       <text x="941.799" y="282.481"><tspan>Karang</tspan></text>
diff --git a/kalamar.dict b/kalamar.dict
index 2fe2ebc..09bdc64 100644
--- a/kalamar.dict
+++ b/kalamar.dict
@@ -73,12 +73,12 @@
         data => {
           'annotation' => 'de/doc/data/annotation'
         },
-        korap => {
-          'kalamar' => 'de/doc/korap/kalamar',
-          'karang' => 'de/doc/korap/karang',
-          'koral' => 'de/doc/korap/koral',
-          'krill' => 'de/doc/korap/krill',
-          'kustvakt' => 'de/doc/korap/kustvakt'
+        development => {
+          'kalamar' => 'de/doc/development/kalamar',
+          'karang' => 'de/doc/development/karang',
+          'koral' => 'de/doc/development/koral',
+          'krill' => 'de/doc/development/krill',
+          'kustvakt' => 'de/doc/development/kustvakt'
         }
       }
     },
@@ -95,7 +95,7 @@
       'corpus' => 'Korpora',
       'annotation' => 'Annotationen',
       '#default-foundries' => 'Standard Foundries',
-      'korap' => 'Entwicklung',
+      'development' => 'Entwicklung',
       'faq' => 'FAQ'
     }
   },
@@ -171,11 +171,11 @@
           'annotation' => 'doc/data/annotation'
         },
         korap => {
-          'kalamar' => 'doc/korap/kalamar',
-          'karang' => 'doc/korap/karang',
-          'koral' => 'doc/korap/koral',
-          'krill' => 'doc/korap/krill',
-          'kustvakt' => 'doc/korap/kustvakt'
+          'kalamar' => 'doc/development/kalamar',
+          'karang' => 'doc/development/karang',
+          'koral' => 'doc/development/koral',
+          'krill' => 'doc/development/krill',
+          'kustvakt' => 'doc/development/kustvakt'
         }
       }
     },
@@ -192,7 +192,7 @@
       'corpus' => 'Corpora',
       'annotation' => 'Annotations',
       '#default-foundries' => 'Default Foundries',
-      'korap' => 'Development',
+      'development' => 'Development',
       'faq' => 'FAQ'
     }
   },
diff --git a/lib/Kalamar/Plugin/KalamarPages.pm b/lib/Kalamar/Plugin/KalamarPages.pm
index eba3dbd..ea7312c 100644
--- a/lib/Kalamar/Plugin/KalamarPages.pm
+++ b/lib/Kalamar/Plugin/KalamarPages.pm
@@ -334,7 +334,7 @@
 =head2 embedded_link_to
 
   %# In templates
-  %= embedded_link_to 'doc','Kalamar', 'korap', 'kalamar'
+  %= embedded_link_to 'doc','Kalamar', 'development', 'kalamar'
 
 Create a link to the documentation. Accepts a realm, a title, a scope, and a page.
 
diff --git a/t/doc.t b/t/doc.t
index 15ca9d0..b0f15c9 100644
--- a/t/doc.t
+++ b/t/doc.t
@@ -108,6 +108,18 @@
   ->text_is('#api-service-uri', 'https://korap.ids-mannheim.de/test/api/v1.0/');
 
 
+# Languages of dev pages
+$t->get_ok('/doc/development/kalamar')
+  ->status_is(200)
+  ->text_is("title", "KorAP: Kalamar")
+  ->content_like(qr!Main developer!);
+
+$t->get_ok('/doc/development/kalamar' => { 'Accept-Language' => 'de-DE, en-US, en' })
+  ->status_is(200)
+  ->text_is("title", "KorAP: Kalamar")
+  ->content_like(qr!Hauptentwickler!);
+
+
 # Check mail_to_chiffre
 like($t->app->mail_to_chiffre('korap@korap.example'),qr!rel="nofollow"!);
 like($t->app->mail_to_chiffre('korap@korap.example'),qr!class="PArok"!);
diff --git a/t/navigation.t b/t/navigation.t
index 45cc832..a15792d 100644
--- a/t/navigation.t
+++ b/t/navigation.t
@@ -35,18 +35,18 @@
 
 my $navi = [
   {
-    id => 'korap',
+    id => 'development',
     title => 'KorAP'
   }
 ];
 
 my $render = $app->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
+like($render, qr!/doc/development!, 'Path matches doc/development');
 like($render, qr!KorAP!, 'Title matches');
 
 $navi = [
   {
-    id => 'korap',
+    id => 'development',
     title => 'KorAP'
   },
   {
@@ -56,14 +56,14 @@
 ];
 
 $render = $app->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
+like($render, qr!/doc/development!, 'Path matches doc/development');
 like($render, qr!KorAP!, 'Title matches');
 like($render, qr!/doc/krill!, 'Path matches doc/krill');
 like($render, qr!Krill!, 'Title matches');
 
 $navi = [
   {
-    id => 'korap',
+    id => 'development',
     title => 'KorAP',
     items => [
       {
@@ -79,13 +79,13 @@
 ];
 
 $render = $app->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
 like($render, qr!/doc/faq!, 'Path matches doc/faq');
 
 $navi = [
   {
-    id => 'korap',
+    id => 'development',
     title => 'KorAP',
     items => [
       {
@@ -129,9 +129,9 @@
 ];
 
 $render = $app->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
-like($render, qr!/doc/korap/koral!, 'Path matches korap/koral');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
+like($render, qr!/doc/development/koral!, 'Path matches development/koral');
 like($render, qr!/doc/ql!, 'Path matches doc/ql');
 like($render, qr!/doc/ql/cosmas2!, 'Path matches doc/ql/cosmas2');
 like($render, qr!/doc/ql/poliqarp-plus!, 'Path matches doc/ql/poliqarp-plus');
@@ -147,10 +147,10 @@
 
 
 my $c = $app->build_controller;
-$c->stash(page => 'korap');
+$c->stash(page => 'development');
 $render = $c->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
 like($render, qr!/doc/ql!, 'Path matches doc/ql');
 like($render, qr!/doc/ql/poliqarp-plus#segments!,
      'Path matches doc/ql/poliqarp-plus#segments');
@@ -160,8 +160,8 @@
 
 $c->stash(page => 'poliqarp-plus');
 $render = $c->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
 like($render, qr!/doc/ql!, 'Path matches doc/ql');
 like($render, qr!/doc/ql/poliqarp-plus#segments!,
      'Path matches doc/ql/poliqarp-plus#segments');
@@ -172,7 +172,7 @@
 
 $navi = [
   {
-    id => 'korap',
+    id => 'development',
     title => 'KorAP',
     items => [
       {
@@ -217,8 +217,8 @@
 ];
 $render = $c->navigation('doc', $navi);
 
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
 like($render, qr!/doc/ql!, 'Path matches doc/ql');
 like($render, qr!/doc/ql/poliqarp-plus#segments!,
      'Path matches doc/ql/poliqarp-plus#segments');
@@ -230,7 +230,7 @@
 # Test for translations
 $navi = [
   {
-    id => 'korap',
+    id => 'development',
     title => 'KorAP',
     items => [
       {
@@ -246,10 +246,10 @@
 ];
 
 $render = $app->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
-like($render, qr!<a href="/doc/korap/krill(?:#[^"]+)?">Krill</a>!,
-     'Path matches korap/krill');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
+like($render, qr!<a href="/doc/development/krill(?:#[^"]+)?">Krill</a>!,
+     'Path matches development/krill');
 like($render, qr!<a href="/doc/faq(?:#[^"]+)?">FAQ</a>!,
      'Path matches FAQ');
 
@@ -257,10 +257,10 @@
 $languages = [qw/de en/];
 
 $render = $app->navigation('doc', $navi);
-like($render, qr!/doc/korap!, 'Path matches doc/korap');
-like($render, qr!/doc/korap/krill!, 'Path matches korap/krill');
-like($render, qr!<a href="/doc/korap/krill(?:#[^"]+)?">Krill</a>!,
-     'Path matches korap/krill');
+like($render, qr!/doc/development!, 'Path matches doc/development');
+like($render, qr!/doc/development/krill!, 'Path matches development/krill');
+like($render, qr!<a href="/doc/development/krill(?:#[^"]+)?">Krill</a>!,
+     'Path matches development/krill');
 like($render, qr!<a href="/doc/faq(?:#[^"]+)?">FAQ</a>!,
      'Path matches FAQ');
 
diff --git a/t/page.t b/t/page.t
index 0be13c8..0ebd0fa 100644
--- a/t/page.t
+++ b/t/page.t
@@ -12,7 +12,7 @@
 is($app->under_construction, '<p>Under Construction!</p>');
 
 is($app->embedded_link_to('doc', 'privacy', 'privacy'), '<a class="embedded-link" href="/doc/privacy">privacy</a>');
-is($app->embedded_link_to('doc', 'privacy', 'korap', 'privacy'), '<a class="embedded-link" href="/doc/korap/privacy">privacy</a>');
+is($app->embedded_link_to('doc', 'privacy', 'development', 'privacy'), '<a class="embedded-link" href="/doc/development/privacy">privacy</a>');
 
 
 my $c = $app->build_controller;
diff --git a/templates/de/doc/korap/kalamar.html.ep b/templates/de/doc/development/kalamar.html.ep
similarity index 84%
rename from templates/de/doc/korap/kalamar.html.ep
rename to templates/de/doc/development/kalamar.html.ep
index 52b7877..db736b9 100644
--- a/templates/de/doc/korap/kalamar.html.ep
+++ b/templates/de/doc/development/kalamar.html.ep
@@ -4,7 +4,7 @@
 
 %= korap_overview 'kalamar'
 
-<p><strong>Hauptentwickler:</strong> Nils Diewald</p>
+<p><strong>Hauptentwickler:</strong> Nils Diewald, Helge Stallkamp</p>
 
 <p>Kalamar ist das wichtigste User-Frontend von KorAP. Es basiert auf <%= ext_link_to 'Mojolicious', "http://mojolicio.us/" %> und ist in Perl und JavaScript geschrieben.</p>
 
diff --git a/templates/de/doc/korap/karang.html.ep b/templates/de/doc/development/karang.html.ep
similarity index 100%
rename from templates/de/doc/korap/karang.html.ep
rename to templates/de/doc/development/karang.html.ep
diff --git a/templates/de/doc/korap/koral.html.ep b/templates/de/doc/development/koral.html.ep
similarity index 100%
rename from templates/de/doc/korap/koral.html.ep
rename to templates/de/doc/development/koral.html.ep
diff --git a/templates/de/doc/korap/krill.html.ep b/templates/de/doc/development/krill.html.ep
similarity index 100%
rename from templates/de/doc/korap/krill.html.ep
rename to templates/de/doc/development/krill.html.ep
diff --git a/templates/de/doc/korap/kustvakt.html.ep b/templates/de/doc/development/kustvakt.html.ep
similarity index 100%
rename from templates/de/doc/korap/kustvakt.html.ep
rename to templates/de/doc/development/kustvakt.html.ep
diff --git a/templates/doc/korap.html.ep b/templates/doc/development.html.ep
similarity index 87%
rename from templates/doc/korap.html.ep
rename to templates/doc/development.html.ep
index 2b0cae5..efd4b70 100644
--- a/templates/doc/korap.html.ep
+++ b/templates/doc/development.html.ep
@@ -2,27 +2,27 @@
 
 %= page_title
 
-%= korap_overview 'korap'
+%= korap_overview 'development'
 
 <p>The KorAP project was launched in 2011 at the <%= ext_link_to 'Leibniz Institute for the German Language (IDS)', "http://www.ids-mannheim.de/" %> in Mannheim, Germany. KorAP is a Corpus Analysis Platform, with an extensible and scalable architecture. It consists of multiple components, that are exchangable due to well defined APIs.</p>
 
 <dl>
-  <dt><%= embedded_link_to('doc', 'Kalamar', 'korap', 'kalamar') %></dt>
+  <dt><%= embedded_link_to('doc', 'Kalamar', 'development', 'kalamar') %></dt>
   <dd>Kalamar is the user frontend. Most users will access the search and analysis capabilities of KorAP through the user frontend. The user will formulate queries in one of several query languages that are passed to Kustvakt.</dd>
 
   <dt><%= embedded_link_to('doc', 'API', 'api') %></dt>
   <dd>As an alternative to the user frontend, queries can be initiated using a REST web interface directly with Kustvakt.</dd>
 
-  <dt><%= embedded_link_to('doc', 'Kustvakt', 'korap', 'kustvakt') %></dt>
-  <dd>Kustvakt is the central user and policy management service. It takes a query and rewrites it to restrict the scope of a search to documents the user is allowed to. It may also inject further properties the user has set up, like preferred annotation layers. To transfer a query written in a certain query language to the internal general query protocol <%= embedded_link_to('doc', 'KoralQuery', 'api', 'koralquery') %>, Kustvakt uses <%= embedded_link_to('doc', 'Koral', 'korap', 'koral') %>.</dd>
+  <dt><%= embedded_link_to('doc', 'Kustvakt', 'development', 'kustvakt') %></dt>
+  <dd>Kustvakt is the central user and policy management service. It takes a query and rewrites it to restrict the scope of a search to documents the user is allowed to. It may also inject further properties the user has set up, like preferred annotation layers. To transfer a query written in a certain query language to the internal general query protocol <%= embedded_link_to('doc', 'KoralQuery', 'api', 'koralquery') %>, Kustvakt uses <%= embedded_link_to('doc', 'Koral', 'development', 'koral') %>.</dd>
 
-  <dt><%= embedded_link_to('doc', 'Koral', 'korap', 'koral') %></dt>
+  <dt><%= embedded_link_to('doc', 'Koral', 'development', 'koral') %></dt>
   <dd>Koral is a library that translates queries written in one of several implemented query languages into a general query protocol, called <%= embedded_link_to('doc', 'KoralQuery', 'api', 'koralquery') %>.</dd>
 
-  <dt><%= embedded_link_to('doc', 'Krill', 'korap', 'krill') %></dt>
+  <dt><%= embedded_link_to('doc', 'Krill', 'development', 'krill') %></dt>
   <dd>Krill is a Lucene based backend engine that can search large corpora for occurrences of search patterns formulated in <%= embedded_link_to('doc', 'KoralQuery', 'api', 'koralquery') %>.</dd>
 
-  <dt><%= embedded_link_to('doc', 'Karang', 'korap', 'karang') %></dt>
+  <dt><%= embedded_link_to('doc', 'Karang', 'development', 'karang') %></dt>
   <dd>Karang is a Neo4j based backend engine that can traverse large corpora represented as graphs.</dd>
 </dl>
 
diff --git a/templates/doc/korap/kalamar.html.ep b/templates/doc/development/kalamar.html.ep
similarity index 100%
rename from templates/doc/korap/kalamar.html.ep
rename to templates/doc/development/kalamar.html.ep
diff --git a/templates/doc/korap/karang.html.ep b/templates/doc/development/karang.html.ep
similarity index 100%
rename from templates/doc/korap/karang.html.ep
rename to templates/doc/development/karang.html.ep
diff --git a/templates/doc/korap/koral.html.ep b/templates/doc/development/koral.html.ep
similarity index 100%
rename from templates/doc/korap/koral.html.ep
rename to templates/doc/development/koral.html.ep
diff --git a/templates/doc/korap/krill.html.ep b/templates/doc/development/krill.html.ep
similarity index 100%
rename from templates/doc/korap/krill.html.ep
rename to templates/doc/development/krill.html.ep
diff --git a/templates/doc/korap/kustvakt.html.ep b/templates/doc/development/kustvakt.html.ep
similarity index 100%
rename from templates/doc/korap/kustvakt.html.ep
rename to templates/doc/development/kustvakt.html.ep
diff --git a/templates/doc/navigation.json b/templates/doc/navigation.json
index a904c16..b53bcf6 100644
--- a/templates/doc/navigation.json
+++ b/templates/doc/navigation.json
@@ -104,7 +104,7 @@
   },
   {
     "title": "Development",
-    "id": "korap",
+    "id": "development",
     "items": [
       {
         "title": "Kalamar",