1. http://www.ksi.mff.cuni.cz/mlynkova/xmlsim/app.zip.
2. http://www.ksi.mff.cuni.cz/mlynkova/xmlsim/dtd.zip.
3. WordNeta – Lexical Database for the English Language, Princeton University, 2006. .
4. The C# Language, Microsoft Corporation, 2008. .
5. Improving XML schema matching performance using prufer sequences;Algergawy;Data Knowl. Eng.,2009