diff --git a/Harvard-FHNW_v1.1.csl b/Harvard-FHNW_v1.1.csl
new file mode 100644
index 0000000..564d09a
--- /dev/null
+++ b/Harvard-FHNW_v1.1.csl
@@ -0,0 +1,282 @@
+<?xml version="1.0" encoding="utf-8"?>
+<style xmlns="http://purl.org/net/xbiblio/csl" class="in-text" version="1.0" and="text" delimiter-precedes-last="never" et-al-min="3" initialize="false" demote-non-dropping-particle="sort-only" default-locale="de-DE">
+  <!-- This style was edited with the Visual CSL Editor (http://editor.citationstyles.org/visualEditor/) -->
+  <info>
+    <title>FHNW University of Applied Sciences and Arts Northwestern Switzerland - Harvard (German) - Samuel Hirsbrunner</title>
+    <title-short>Harvard-FHNW</title-short>
+    <id>https://github.com/S4mHi6ru/CitationStyleFHNW</id>
+    <link href="https://github.com/S4mHi6ru/CitationStyleFHNW" rel="self"/>
+    <link href="http://gbfe.org/" rel="documentation"/>
+    <link href="http://www.acf.de/uploads/media/GBFE_Studienbrief_5_Form_bewahren_01.pdf" rel="documentation"/>
+    <author>
+      <name>Julian Onions</name>
+      <email>julian.onions@gmail.com</email>
+    </author>
+    <author>
+      <name>Samuel Hirsbrunner</name>
+      <email>samuel.hirsbrunner@students.fhnw.ch</email>
+    </author>
+    <contributor>
+      <name>Samuel Hirsbrunner</name>
+      <email>samuel.hirsbrunner@students.fhnw.ch</email>
+    </contributor>
+    <category citation-format="author-date"/>
+	<category field="engineering"/>
+    <summary>The Harvard author-date style with German FHNW changes</summary>
+    <updated>2017-10-04T23:43:23+00:00</updated>
+    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
+  </info>
+  <locale xmlns="http://purl.org/net/xbiblio/csl" xml:lang="de-DE">
+    <terms>
+      <term name="page">
+        <single>Seite</single>
+        <multiple>Seiten</multiple>
+      </term>
+      <term name="page" form="short">
+        <single>S.</single>
+        <multiple>S.</multiple>
+      </term>
+      <term name="editor">Herausgeber</term>
+      <term name="editor" form="short">Hg.</term>
+      <term name="et-al">et&amp;#160;al.</term>
+      <term name="edition">
+        <single>Auflage</single>
+        <multiple>Auflagen</multiple>
+      </term>
+      <term name="edition" form="short">
+        <single>Auflage</single>
+        <multiple>Auflagen</multiple>
+      </term>
+      <term name="ordinal-01">.</term>
+      <term name="ordinal-02">.</term>
+      <term name="ordinal-03">.</term>
+      <term name="ordinal-04">.</term>
+      <term name="accessed">Stand</term>
+    </terms>
+    <date form="text">
+      <date-part name="month" suffix=" "/>
+      <date-part name="day" suffix=", "/>
+      <date-part name="year"/>
+    </date>
+    <date form="numeric">
+      <date-part name="year"/>
+      <date-part name="month" form="numeric" prefix="-" range-delimiter="/"/>
+      <date-part name="day" prefix="-" range-delimiter="/"/>
+    </date>
+    <style-options punctuation-in-quote="true"/>
+  </locale>
+  <macro name="author">
+    <names variable="author" delimiter=", ">
+      <name delimiter="; " and="text" delimiter-precedes-last="never" et-al-min="3" initialize="false" name-as-sort-order="all"/>
+      <label form="short" prefix=" (" suffix=")" text-case="capitalize-first"/>
+      <substitute>
+        <names variable="editor"/>
+        <text macro="anon"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="editor">
+    <names variable="editor" delimiter=", ">
+      <name and="symbol" initialize-with=". " delimiter=", "/>
+      <label form="short" prefix=", " text-case="capitalize-first"/>
+    </names>
+  </macro>
+  <macro name="anon">
+    <text term="anonymous" form="short" text-case="capitalize-first" strip-periods="true" suffix=","/>
+  </macro>
+  <macro name="author-short">
+    <names variable="author" suffix=",">
+      <name form="short" and="text" delimiter-precedes-last="never" initialize-with=". "/>
+      <substitute>
+        <names variable="editor"/>
+        <names variable="translator"/>
+        <text macro="anon"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="access">
+    <choose>
+      <if variable="URL">
+        <text variable="URL"/>
+        <group prefix=" [" suffix="]">
+          <text term="accessed" text-case="capitalize-first" suffix=": "/>
+          <date variable="accessed">
+            <date-part name="day" form="numeric-leading-zeros" suffix="."/>
+            <date-part name="month" form="numeric-leading-zeros" suffix="."/>
+            <date-part name="year" range-delimiter=""/>
+          </date>
+        </group>
+      </if>
+    </choose>
+  </macro>
+  <macro name="title">
+    <choose>
+      <if type="bill book graphic legal_case legislation motion_picture report song thesis webpage" match="any">
+        <text variable="title" font-style="italic" suffix="."/>
+      </if>
+      <else>
+        <text variable="title"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="publisher">
+    <group delimiter=": ">
+      <text variable="publisher-place"/>
+      <text variable="publisher"/>
+    </group>
+  </macro>
+  <macro name="year-date">
+    <choose>
+      <if variable="issued">
+        <date variable="issued">
+          <date-part name="year"/>
+        </date>
+      </if>
+      <else>
+        <text term="no date" form="short"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="edition">
+    <choose>
+      <if is-numeric="edition">
+        <group delimiter=" ">
+          <number variable="edition" form="ordinal"/>
+          <text term="edition" form="short"/>
+        </group>
+      </if>
+      <else>
+        <text variable="edition" suffix="."/>
+      </else>
+    </choose>
+  </macro>
+  <citation and="text" et-al-min="3" et-al-use-first="1" initialize="false" disambiguate-add-names="true" disambiguate-add-givenname="true" disambiguate-add-year-suffix="true">
+    <layout prefix="(" suffix=")" delimiter="; ">
+      <group delimiter=", ">
+        <group>
+          <text macro="author-short" suffix=" "/>
+          <text macro="year-date"/>
+          <choose>
+            <if match="all" locator="page">
+              <text variable="locator" form="short" prefix=", S.&amp;#160;"/>
+            </if>
+            <else-if match="any" locator="chapter">
+              <text variable="locator" prefix=", K.&amp;#160;"/>
+            </else-if>
+            <else>
+              <text variable="locator" prefix=", "/>
+            </else>
+          </choose>
+        </group>
+      </group>
+    </layout>
+  </citation>
+  <bibliography and="text" et-al-min="3" et-al-use-first="3" initialize="false" initialize-with="." name-as-sort-order="all" names-delimiter="; " hanging-indent="true">
+    <sort>
+      <key macro="author"/>
+      <key variable="title"/>
+    </sort>
+    <layout>
+      <text macro="author"/>
+      <date variable="issued" prefix=" (" suffix="):">
+        <date-part name="year"/>
+      </date>
+      <choose>
+        <if type="bill book graphic legal_case legislation motion_picture report song" match="any">
+          <group prefix=" " delimiter=" ">
+            <text macro="title"/>
+            <text variable="volume" prefix="Bd.&amp;#160;" suffix=", "/>
+            <text variable="issue" suffix=", "/>
+            <text macro="edition"/>
+            <text macro="editor"/>
+          </group>
+          <text prefix=" " suffix="." macro="publisher"/>
+        </if>
+        <else-if type="chapter paper-conference" match="any">
+          <text macro="title" prefix=" " suffix="."/>
+          <group prefix=" " delimiter=" ">
+            <text term="in" text-case="capitalize-first" suffix=":"/>
+            <text macro="editor"/>
+            <text variable="container-title" font-style="italic" suffix="."/>
+            <text variable="collection-title" suffix="."/>
+            <text variable="event" suffix="."/>
+            <group suffix="." delimiter=", ">
+              <text macro="publisher" prefix=" "/>
+              <text variable="page" prefix="S.&amp;#160;"/>
+            </group>
+          </group>
+        </else-if>
+        <else-if type="thesis">
+          <group prefix=" " suffix=".">
+            <text macro="title" suffix=". "/>
+            <text variable="genre" suffix=". "/>
+            <text variable="publisher" suffix=", "/>
+            <text variable="publisher-place"/>
+          </group>
+        </else-if>
+        <else-if type="webpage post-weblog post" match="any">
+          <group prefix=" " delimiter=" " suffix=". ">
+            <text macro="title"/>
+            <text variable="container-title"/>
+            <text macro="edition"/>
+            <text macro="editor"/>
+          </group>
+        </else-if>
+        <else-if type="entry-encyclopedia entry-dictionary" match="any">
+          <group suffix=".">
+            <text macro="title" prefix=" "/>
+            <text macro="editor" prefix=" "/>
+          </group>
+          <group prefix=" " suffix=".">
+            <text variable="container-title" font-style="italic"/>
+            <text variable="edition" vertical-align="sup"/>
+            <group prefix=" ">
+              <text variable="volume"/>
+              <text variable="issue" prefix="(" suffix=")"/>
+            </group>
+            <group prefix=",">
+              <text variable="page"/>
+            </group>
+          </group>
+        </else-if>
+        <else-if type="article-magazine article-newspaper article-journal" match="any">
+          <group suffix=".">
+            <text macro="title" prefix=" "/>
+            <text macro="editor" prefix=" "/>
+          </group>
+          <group prefix=" " suffix=".">
+            <text variable="container-title" font-style="italic" suffix=" "/>
+            <text variable="volume" suffix=", "/>
+            <text variable="issue" suffix=", "/>
+            <text variable="page" prefix="S.&amp;#160;"/>
+          </group>
+        </else-if>
+        <else>
+          <group suffix=".">
+            <text macro="title" prefix=" "/>
+            <text macro="editor" prefix=" "/>
+          </group>
+          <group prefix=" " suffix=".">
+            <text variable="container-title" font-style="italic"/>
+            <group prefix=", ">
+              <text variable="volume"/>
+              <text variable="issue" prefix="(" suffix=")"/>
+            </group>
+            <group prefix=", ">
+              <text variable="page"/>
+            </group>
+          </group>
+        </else>
+      </choose>
+      <choose>
+        <if match="any" variable="DOI">
+          <text variable="DOI" prefix=" DOI:&amp;#160;" suffix="."/>
+        </if>
+        <else-if match="any" variable="note">
+          <text variable="note" prefix=" " suffix="."/>
+        </else-if>
+      </choose>
+      <text prefix=" " macro="access" suffix="."/>
+    </layout>
+  </bibliography>
+</style>
diff --git a/README.md b/README.md
index d0655ec..942434b 100644
--- a/README.md
+++ b/README.md
@@ -10,8 +10,15 @@ Adapted to most requirements for the MSE engineering for students at the FHNW HA
 * Mendeley (tested)
 * Zotero (tested)
 
+### Installation guide
+* Download Zip-File from GitHub
+* Extract the file on your computer
+* Double click on the *.csl file to install it
+* alternatively import *.csl file in Zotero / Mendeley Desktop Client
+
 ### Versions
 * 1.0: Initial Release
+* 1.1: Added support for DOI
 
 ### Autor
 * S. Hirsbrunner
diff --git a/Harvard-FHNW_v1.0.csl b/previousRelease/Harvard-FHNW_v1.0.csl
similarity index 100%
rename from Harvard-FHNW_v1.0.csl
rename to previousRelease/Harvard-FHNW_v1.0.csl