Publishing Engine Programmer's Guide > The Arbortext Publishing Engine Sub-Process > Arbortext Publishing Engine Document Conversion > Conversion Processing > Producing XML and SGML Output > Flattening Entities in the Output
  
Flattening Entities in the Output
When the output type is XML or SGML, you can choose whether to flatten all entities and XML inclusion references in the output document by specifying the parameter flatten-entities=yes|no.