who 

indicates the person, or group of people, to whom the element content is
ascribed.

Attribute Information

Used By

Attribute Group tei:att.ascribed.attribute.who

Source 

<xs:attribute name="who">
  <xs:annotation>
    <xs:documentation>indicates the person, or group of people, to whom the element content is ascribed.</xs:documentation>
  </xs:annotation>
  <xs:simpleType>
    <xs:restriction>
      <xs:simpleType>
        <xs:list itemType="xs:anyURI"/>
      </xs:simpleType>
      <xs:minLength value="1"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>

Sample