diff --git a/Schemata/KGPZ.xsd b/Schemata/KGPZ.xsd
deleted file mode 100644
index b48c24d..0000000
--- a/Schemata/KGPZ.xsd
+++ /dev/null
@@ -1,26 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:include schemaLocation="personen.xsd" />
-    <xs:include schemaLocation="orte.xsd" />
-    <xs:include schemaLocation="kategorien.xsd" />
-    <xs:include schemaLocation="werke.xsd" />
-    <xs:include schemaLocation="stuecke.xsd" />
-    <xs:include schemaLocation="beitraege.xsd" />
-
-    <xs:element name="kgpz">
-        <xs:complexType>
-            <xs:sequence minOccurs="1" maxOccurs="1">
-                <xs:element name="personen" type="personen" minOccurs="1" maxOccurs="1"/>
-                <xs:element name="orte" type="orte" minOccurs="1"  maxOccurs="1"/>
-                <xs:element name="kategorien" type="kategorien" minOccurs="1"  maxOccurs="1"/>
-                <xs:element name="werke" type="werke"  maxOccurs="1" minOccurs="1"/>
-                <xs:element name="stuecke" type="stuecke"  maxOccurs="1" minOccurs="1"/>
-                <xs:element name="beitraege" type="beitraege"  maxOccurs="1" minOccurs="1"/>
-            </xs:sequence>
-        </xs:complexType>
-    </xs:element>
-</xs:schema>
\ No newline at end of file
diff --git a/Schemata/beitraege.xsd b/Schemata/beitraege.xsd
deleted file mode 100644
index c1953f7..0000000
--- a/Schemata/beitraege.xsd
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:element name="beitraege" type="beitraege" />
-
-    <xs:complexType name="beitraege"></xs:complexType>
-</xs:schema>
\ No newline at end of file
diff --git a/Schemata/kategorien.xsd b/Schemata/kategorien.xsd
deleted file mode 100644
index bf4b420..0000000
--- a/Schemata/kategorien.xsd
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:element name="kategorien" type="kategorien" />
-
-    <xs:complexType name="kategorien"></xs:complexType>
-</xs:schema>
\ No newline at end of file
diff --git a/Schemata/orte.xsd b/Schemata/orte.xsd
deleted file mode 100644
index 5ef70c1..0000000
--- a/Schemata/orte.xsd
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:element name="orte" type="orte" />
-
-    <xs:complexType name="orte"></xs:complexType>
-</xs:schema>
\ No newline at end of file
diff --git a/Schemata/personen.xsd b/Schemata/personen.xsd
deleted file mode 100644
index 2e1d462..0000000
--- a/Schemata/personen.xsd
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:element name="personen" type="personen" />
-
-    <xs:complexType name="personen"></xs:complexType>
-</xs:schema>
\ No newline at end of file
diff --git a/Schemata/stuecke.xsd b/Schemata/stuecke.xsd
deleted file mode 100644
index c42df84..0000000
--- a/Schemata/stuecke.xsd
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:element name="stuecke" type="stuecke" />
-
-    <xs:complexType name="stuecke"></xs:complexType>
-</xs:schema>
\ No newline at end of file
diff --git a/Schemata/werke.xsd b/Schemata/werke.xsd
deleted file mode 100644
index 2b37191..0000000
--- a/Schemata/werke.xsd
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
-    targetNamespace="https://www.kgpz.de"
-    xmlns="https://www.kgpz.de"
-    elementFormDefault="qualified">
-
-    <xs:element name="werke" type="werke" />
-
-    <xs:complexType name="werke"></xs:complexType>
-</xs:schema>
\ No newline at end of file
diff --git a/XSD/KGPZ.xsd b/XSD/KGPZ.xsd
new file mode 100644
index 0000000..79b5b4e
--- /dev/null
+++ b/XSD/KGPZ.xsd
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de" 
+    elementFormDefault="qualified">
+
+    <xsd:include schemaLocation="akteure.xsd" />
+    <xsd:include schemaLocation="orte.xsd" />
+    <xsd:include schemaLocation="kategorien.xsd" />
+    <xsd:include schemaLocation="werke.xsd" />
+    <xsd:include schemaLocation="stuecke.xsd" />
+    <xsd:include schemaLocation="beitraege.xsd" />
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/akteure.xsd b/XSD/akteure.xsd
new file mode 100644
index 0000000..808c1c4
--- /dev/null
+++ b/XSD/akteure.xsd
@@ -0,0 +1,37 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de" 
+    elementFormDefault="qualified">
+
+    <xsd:include schemaLocation="common.xsd" />
+
+    <xsd:element name="akteure">
+        <xsd:complexType>
+            <xsd:sequence>
+                <xsd:element name="akteur" maxOccurs="unbounded">
+                    <xsd:complexType>
+                        <xsd:sequence>
+                            <xsd:element name="name" type="NonEmptyString" nillable="false" maxOccurs="unbounded" />
+                            <xsd:element name="sortiername" minOccurs="1" maxOccurs="1" type="kgpz:NonEmptyString" nillable="false" />
+                            <xsd:element name="lebensdaten" minOccurs="0" maxOccurs="1" type="kgpz:NonEmptyString" />
+                            <!-- TODO: URI FOR GND -->
+                            <xsd:element name="gnd" minOccurs="0" maxOccurs="1" type="xsd:anyURI" nillable="false" />
+                            <xsd:element name="anmerkung" type="kgpz:NonEmptyString" minOccurs="0" maxOccurs="unbounded"/>
+                        </xsd:sequence>
+                        <xsd:attribute name="id" type="xsd:string" use="required" />
+                    </xsd:complexType>
+                </xsd:element>
+            </xsd:sequence>
+        </xsd:complexType>
+        <xsd:unique name="uniqueIndexAkteur">
+            <xsd:selector xpath="kgpz:akteur" />
+            <xsd:field xpath="@id" />
+        </xsd:unique>
+        <xsd:unique name="uniqueGND">
+            <xsd:selector xpath="kgpz:akteur" />
+            <xsd:field xpath="kgpz:gnd" />
+        </xsd:unique>
+    </xsd:element>
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/beitraege.xsd b/XSD/beitraege.xsd
new file mode 100644
index 0000000..02cc839
--- /dev/null
+++ b/XSD/beitraege.xsd
@@ -0,0 +1,11 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de" 
+    elementFormDefault="qualified">
+
+    <xsd:element name="beitraege" type="beitraege" />
+
+    <xsd:complexType name="beitraege"></xsd:complexType>
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/common.xsd b/XSD/common.xsd
new file mode 100644
index 0000000..98a1045
--- /dev/null
+++ b/XSD/common.xsd
@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+  targetNamespace="https://www.kgpz.de"
+  xmlns="https://www.kgpz.de"
+  xmlns:kgpz="https://www.kgpz.de"
+  elementFormDefault="qualified">
+  <xsd:simpleType name="NonEmptyString">
+    <xsd:restriction base="xsd:string">
+      <xsd:minLength value="1" />
+      <xsd:pattern value=".*[^\s].*" />
+    </xsd:restriction>
+  </xsd:simpleType>
+
+  <xsd:simpleType name="Year">
+    <xsd:restriction base="xsd:unsignedInt">
+      <xsd:minInclusive value="0"/>
+      <xsd:maxInclusive value="2024"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/kategorien.xsd b/XSD/kategorien.xsd
new file mode 100644
index 0000000..862d421
--- /dev/null
+++ b/XSD/kategorien.xsd
@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de" 
+    elementFormDefault="qualified">
+
+    <xsd:include schemaLocation="common.xsd"/>
+
+    <xsd:element name="kategorien">
+        <xsd:complexType>
+            <xsd:sequence>
+                <xsd:element name="kategorie" maxOccurs="unbounded">
+                    <xsd:complexType>
+                        <xsd:sequence>
+                            <xsd:element name="name" type="NonEmptyString" minOccurs="1" maxOccurs="1" nillable="false" />
+                        </xsd:sequence>
+                        <xsd:attribute name="index" type="xsd:integer" use="required" />
+                    </xsd:complexType>
+                </xsd:element>
+            </xsd:sequence>
+        </xsd:complexType>
+        <xsd:unique name="uniqueIndexKategorien">
+            <xsd:selector xpath="kgpz:kategorie" />
+            <xsd:field xpath="@index" />
+        </xsd:unique>
+    </xsd:element>
+
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/orte.xsd b/XSD/orte.xsd
new file mode 100644
index 0000000..c7cd5c5
--- /dev/null
+++ b/XSD/orte.xsd
@@ -0,0 +1,36 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de" 
+    elementFormDefault="qualified">
+
+    <xsd:include schemaLocation="common.xsd" />
+
+    <xsd:element name="orte">
+        <xsd:complexType>
+            <xsd:sequence>
+                <xsd:element name="ort" minOccurs="0" maxOccurs="unbounded">
+                    <xsd:complexType>
+                        <xsd:sequence>
+                            <xsd:element name="name" type="kgpz:NonEmptyString" minOccurs="1" maxOccurs="unbounded" nillable="false" />
+                            <!-- TODO: geonames URI regex -->
+                            <xsd:element name="geonames" type="xsd:anyURI" minOccurs="0" maxOccurs="1" nillable="false" />
+                            <xsd:element name="anmerkung" type="kgpz:NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+                        </xsd:sequence>
+                        <xsd:attribute name="id" type="xsd:string" use="required" />
+                    </xsd:complexType>
+                </xsd:element>
+            </xsd:sequence>
+        </xsd:complexType>
+        <xsd:unique name="uniqueIndexOrte">
+            <xsd:selector xpath="kgpz:ort" />
+            <xsd:field xpath="@id" />
+        </xsd:unique>
+        <xsd:unique name="uniqueGeonames">
+            <xsd:selector xpath="kgpz:ort" />
+            <xsd:field xpath="kgpz:geonames" />
+        </xsd:unique>
+    </xsd:element>
+
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/stuecke.xsd b/XSD/stuecke.xsd
new file mode 100644
index 0000000..e6d78c3
--- /dev/null
+++ b/XSD/stuecke.xsd
@@ -0,0 +1,39 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de" 
+    elementFormDefault="qualified">
+
+    <!-- Vorschlag: Stücke aus dem Datum von Dateinamen ableiten -->
+    <xsd:include schemaLocation="common.xsd" />
+    <xsd:element name="stuecke">
+        <xsd:complexType>
+            <xsd:sequence>
+                <xsd:element name="stueck" maxOccurs="unbounded">
+                    <xsd:complexType>
+                        <xsd:sequence>
+                            <!-- Lässt sich aus Nummer + Jahr berechnen. -->
+                            <xsd:element name="datum" type="xsd:date" minOccurs="1" maxOccurs="1" nillable="false" />
+
+                            <!-- Von + bis lässt sich aus Nummer berechnen (n-1) * 4 + 1 bzw. (n-1) * 4 + 1 -->
+                            <xsd:element name="von" type="xsd:positiveInteger" minOccurs="0" maxOccurs="1"/>
+                            <xsd:element name="bis" type="xsd:positiveInteger" minOccurs="0" maxOccurs="1" />
+
+                            <!-- Kann von Stücke abgeleitet werden -->
+                            <xsd:element name="beilagen" type="xsd:nonNegativeInteger" default="0" minOccurs="0" maxOccurs="1"/>
+
+                            <!-- Vielleicht nötig -->
+                            <xsd:element name="anmerkung" type="kgpz:NonEmptyString" />
+                        </xsd:sequence>
+                        <xsd:attribute name="nummer" type="xsd:integer" use="required" />
+                    </xsd:complexType>
+                </xsd:element>
+            </xsd:sequence>
+        </xsd:complexType>
+        <xsd:unique name="uniqueNummer">
+            <xsd:selector xpath="stueck" />
+            <xsd:field xpath="@nummer" />
+        </xsd:unique>
+    </xsd:element>
+</xsd:schema>
\ No newline at end of file
diff --git a/XSD/werke.xsd b/XSD/werke.xsd
new file mode 100644
index 0000000..16a3e49
--- /dev/null
+++ b/XSD/werke.xsd
@@ -0,0 +1,45 @@
+<?xml version="1.0"?>
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="https://www.kgpz.de"
+    xmlns="https://www.kgpz.de"
+    xmlns:kgpz="https://www.kgpz.de"
+    elementFormDefault="qualified">
+
+    <xsd:include schemaLocation="common.xsd" />
+
+    <xsd:element name="werke">
+        <xsd:complexType>
+            <xsd:sequence>
+                <xsd:element name="werk" maxOccurs="unbounded">
+                    <xsd:complexType>
+                        <xsd:choice>
+                            <xsd:element name="daten" type="kgpz:citation" minOccurs="0" maxOccurs="1" />
+                            <xsd:element name="zitation" type="NonEmptyString" minOccurs="0" maxOccurs="1" />
+                            <xsd:element name="anmerkung" type="kgpz:NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+                        </xsd:choice>
+                        <xsd:attribute name="id" type="xsd:string" use="required" />
+                    </xsd:complexType>
+                </xsd:element>
+            </xsd:sequence>
+        </xsd:complexType>
+        <xsd:unique name="uniqueId">
+            <xsd:selector xpath="kgpz:werk" />
+            <xsd:field xpath="@id" />
+        </xsd:unique>
+    </xsd:element>
+
+    <xsd:complexType name="citation">
+        <xsd:sequence>
+            <xsd:element name="autorschaft" type="NonEmptyString" minOccurs="0" maxOccurs="unbounded"/>
+            <xsd:element name="herausgabe" type="NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+            <xsd:element name="druck" type="NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+            <xsd:element name="verlag" type="NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+            <xsd:element name="vertrieb" type="NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+            <xsd:element name="ausgabe" type="NonEmptyString" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="titel" type="NonEmptyString" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="titelannotation" type="NonEmptyString" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="jahr" type="NonEmptyString" minOccurs="0" maxOccurs="1" />
+            <xsd:element name="ort" type="NonEmptyString" minOccurs="0" maxOccurs="unbounded" />
+        </xsd:sequence>
+    </xsd:complexType>
+</xsd:schema>
\ No newline at end of file
diff --git a/XSLT_Merge/kgpz.xml b/XSLT_Merge/kgpz.xml
new file mode 100644
index 0000000..d6bc8d4
--- /dev/null
+++ b/XSLT_Merge/kgpz.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<kgpz xmlns:xi="http://www.w3.org/2001/XInclude">
+    <xi:include href="../kategorien.xml" />
+    <xi:include href="../orte.xml" />
+    <xi:include href="../akteure.xml" />
+    <xi:include href="../stuecke.xml" />
+    <xi:include href="../werke.xml" />
+    <xi:include href="../beitraege.xml" />
+</kgpz>
\ No newline at end of file
diff --git a/XSLT_Merge/merge.sh b/XSLT_Merge/merge.sh
new file mode 100755
index 0000000..9e2d0ef
--- /dev/null
+++ b/XSLT_Merge/merge.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+xmlstarlet tr --xinclude merge.xsl kgpz.xml
\ No newline at end of file
diff --git a/XSLT_Merge/merge.xsl b/XSLT_Merge/merge.xsl
new file mode 100644
index 0000000..44d220d
--- /dev/null
+++ b/XSLT_Merge/merge.xsl
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<xsl:transform version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+
+<xsl:output method="xml" />
+
+<xsl:template match="/">
+<xsl:copy-of select="."/>
+</xsl:template>
+
+</xsl:transform>
\ No newline at end of file
diff --git a/akteure.xml b/akteure.xml
new file mode 100644
index 0000000..234bc27
--- /dev/null
+++ b/akteure.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<akteure xmlns="https://www.kgpz.de"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="https://www.kgpz.de XSD/KGPZ.xsd">
+    <akteur index="1">
+        <name>Albert Einstein</name>
+        <name>Ainshutain, A.</name>
+        <sortiername>Einstein, Albert</sortiername>
+        <geburtsdatum>1879-03-14</geburtsdatum>
+        <sterbedatum>1955-04-18</sterbedatum>
+        <gnd>https://d-nb.info/gnd/118529579</gnd>
+    </akteur>
+</akteure>
\ No newline at end of file
diff --git a/beitraege.xml b/beitraege.xml
index 9aa5fc6..c869bd6 100644
--- a/beitraege.xml
+++ b/beitraege.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0"?>
 <beitraege xmlns="https://www.kgpz.de"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd"></beitraege>
\ No newline at end of file
+    xsi:schemaLocation="https://www.kgpz.de XSD_Schemata/KGPZ.xsd"></beitraege>
\ No newline at end of file
diff --git a/kategorien.xml b/kategorien.xml
index 7a90b0f..4622848 100644
--- a/kategorien.xml
+++ b/kategorien.xml
@@ -1,5 +1,14 @@
 <?xml version="1.0"?>
 <kategorien xmlns="https://www.kgpz.de"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd"></kategorien>
\ No newline at end of file
+    xsi:schemaLocation="https://www.kgpz.de XSD_Schemata/KGPZ.xsd">
+<kategorie index="1">
+    <name>Wissenschaft</name>
+</kategorie>
+<kategorie index="2">
+    <name>Technik</name>
+</kategorie>
+<kategorie index="3">
+    <name>Politik</name>
+</kategorie>
+</kategorien>
\ No newline at end of file
diff --git a/kgpz.xml b/kgpz.xml
deleted file mode 100644
index b7141a8..0000000
--- a/kgpz.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0"?>
-<kgpz
-    xmlns="https://www.kgpz.de"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd">
-    <personen />
-    <orte />
-    <kategorien />
-    <werke />
-    <stuecke />
-    <beitraege />
-</kgpz>
\ No newline at end of file
diff --git a/orte.xml b/orte.xml
index b84d099..40aafd9 100644
--- a/orte.xml
+++ b/orte.xml
@@ -1,5 +1,12 @@
 <?xml version="1.0"?>
 <orte xmlns="https://www.kgpz.de"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd"></orte>
\ No newline at end of file
+    xsi:schemaLocation="https://www.kgpz.de XSD_Schemata/KGPZ.xsd">
+    <ort index="1">
+        <name>Hallo</name>
+        <geonames></geonames>
+    </ort>
+    <ort index="2">
+        <name>Hans2</name>
+    </ort>
+</orte>
\ No newline at end of file
diff --git a/personen.xml b/personen.xml
deleted file mode 100644
index 7b3baa0..0000000
--- a/personen.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0"?>
-<personen xmlns="https://www.kgpz.de"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd"></personen>
\ No newline at end of file
diff --git a/stuecke.xml b/stuecke.xml
index ecea7d7..47654df 100644
--- a/stuecke.xml
+++ b/stuecke.xml
@@ -1,5 +1,12 @@
 <?xml version="1.0"?>
 <stuecke xmlns="https://www.kgpz.de"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd"></stuecke>
\ No newline at end of file
+    xsi:schemaLocation="https://www.kgpz.de XSD/KGPZ.xsd">
+    <stueck nummer="1">
+        <datum>1970-01-01</datum>
+        <von>1</von>
+        <bis>4</bis>
+        <beilagen>3</beilagen>
+        <anmerkung>Anmerkung</anmerkung>
+    </stueck>
+</stuecke>
\ No newline at end of file
diff --git a/werke.xml b/werke.xml
index 7ba492e..692d81c 100644
--- a/werke.xml
+++ b/werke.xml
@@ -1,5 +1,12 @@
 <?xml version="1.0"?>
 <werke xmlns="https://www.kgpz.de"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xmlns:xi="http://www.w3.org/2001/XInclude"
-    xsi:schemaLocation="https://www.kgpz.de Schemata/KGPZ.xsd"></werke>
\ No newline at end of file
+    xsi:schemaLocation="https://www.kgpz.de XSD/KGPZ.xsd">
+    <werk id="1">
+        
+    </werk>
+    <werk id="2">
+        <zitation>Hans</zitation>
+        <anmerkung>Anmerkungen</anmerkung>
+    </werk>
+</werke>
\ No newline at end of file