ReferencePeriod

<xs:element xmlns:altova="http://www.altova.com/xml-schema-extensions"
            xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
            xmlns:xs="http://www.w3.org/2001/XMLSchema"
            name="ReferencePeriod">
   <xs:complexType>
      <xs:sequence>
         <xs:element name="Start" type="xs:date">
            <xs:annotation>
               <xs:documentation>08090: The Date that specifies the start of the Reference Period. Defined as "From and including". All ex-post cost disclosures apart from 08040 refers to all dates in such period.</xs:documentation>
            </xs:annotation>
         </xs:element>
         <xs:element name="End" type="xs:date">
            <xs:annotation>
               <xs:documentation>08100: The Date that specifies the end of the Reference Period. Defined as "To and including". All ex-post cost disclosures apart from 08040 refers to all dates in such period. For the avoidance of doubt, this date can be specified as equal to the date specified in 08090.</xs:documentation>
            </xs:annotation>
         </xs:element>
      </xs:sequence>
   </xs:complexType>
</xs:element>