- ISO 9999
- There is a **separate working document** on the relationship between ISO 9999 2007 and ICF; a working document for the fifth edition is in preparation
- **Chapters** in ISO 9999, 2011
- **Brisbane 91(2002)**: Classification of technical aids for persons with disabilities, Marijke W. de Kleijn-de Vrankrijker
- **Cologne 33 (2003)**: ISO 9999 submission to the WHO-FIC, Marijke W. de Kleijn - de Vrankrijker
- **Cologne 41(2003)**: The use of the ICF and ISO 9999, Theo Bougie
