1. The functionality of SGML and its related standards for applications for the print disabled;Engelen,1993
2. Structuring documents: The essential step in accessible text production for reading impaired persons;Engelen,1994
3. Increasing access to information for the print disabled through electronic documents in SGML;Bauwens,1994
4. European interchange format;Bauwens;CAPSNEWS DTD version 2.0.,1993