<xs:complexType name="ArticleNumberType">
    <xs:sequence>
        <xs:element name="Type">
            <xs:simpleType>
                <xs:restriction base="xs:token">
                    <xs:enumeration value="GTIN" />
                    <xs:enumeration value="GMN" />
                    <xs:enumeration value="Manufacturer_SKU" />
                    <xs:enumeration value="DK_BDB_DBNr" />
                    <xs:enumeration value="DK_BDB_BygDokNr" />
                    <xs:enumeration value="DK_VVSNr" />
                    <xs:enumeration value="SE_E_num" />
                    <xs:enumeration value="SE_RSK_num" />
                </xs:restriction>
            </xs:simpleType>
        </xs:element>
        <xs:element name="Number" type="xs:token" />
    </xs:sequence>
</xs:complexType>

• ArticleNumberType
• ArticleNumber