contributor

<xs:element name="contributor" minOccurs="0" maxOccurs="unbounded">
  <xs:annotation>
    <xs:documentation>The contributor element defines authoring information for asset management</xs:documentation>
  </xs:annotation>
  <xs:complexType>
    <xs:sequence>
      <xs:element name="author" type="xs:string" minOccurs="0">
        <xs:annotation>
          <xs:documentation>The author element contains a string with the author's name. There may be only one author element.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="author_email" minOccurs="0">
        <xs:annotation>
          <xs:documentation>Contains a string with author's email address. String that compliant with RFC 2822 section 3.4. This element has no attributes. There may be only one author email address.</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:string">
            <xs:pattern value="[A-Za-z0-9!#-'\*\+\-/=\?\^_`\{-~]+(\.[A-Za-z0-9!#-'\*\+\-/=\?\^_`\{-~]+)*@[A-Za-z0-9!#-'\*\+\-/=\?\^_`\{-~]+(\.[A-Za-z0-9!#-'\*\+\-/=\?\^_`\{-~]+)*"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:element>
      <xs:element name="author_website" type="xs:anyURI" minOccurs="0">
        <xs:annotation>
          <xs:documentation>Contains a URI reference (xs:anyURI) to author's website. This element has no attributes. There may be only one author website.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="authoring_tool" type="xs:string" minOccurs="0">
        <xs:annotation>
          <xs:documentation>The authoring_tool element contains a string with the authoring tool's name. There may be only one authoring_tool element.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="comments" type="xs:string" minOccurs="0">
        <xs:annotation>
          <xs:documentation>The comments element contains a string with comments from this contributor. There may be only one comments element.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="copyright" type="xs:string" minOccurs="0">
        <xs:annotation>
          <xs:documentation>The copyright element contains a string with copyright information. There may be only one copyright element.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="source_data" type="xs:anyURI" minOccurs="0">
        <xs:annotation>
          <xs:documentation>The source_data element contains a URI reference to the source data used for this asset. There may be only one source_data element.</xs:documentation>
        </xs:annotation>
      </xs:element>
    </xs:sequence>
  </xs:complexType>
</xs:element>