<!ENTITY % transformation SYSTEM "transformation_v1.0a4.dtd" >
%transformation;

<!ELEMENT representation (( file | reference ), transformation?)>
<!ATTLIST representation
	copy CDATA #IMPLIED>

<!ELEMENT file EMPTY>
<!ATTLIST file
	type CDATA #REQUIRED
	name CDATA #REQUIRED>

<!ELEMENT reference EMPTY>
<!ATTLIST reference
	sourceId CDATA #REQUIRED>
