1. WHO. How to use the ICF—a practical manual for using the international classification of functioning, disability and health (ICF), Exposure Draft for Comment. Geneva. 2013
2. ISO 8549-1. 1989(en) Prosthetics and orthotics-vocabulary-part 1 general terms for external limb prostheses and external orthoses, ISO International. 1989.
3. Hohmann D, Uhlig R. Orthopädische Technik, 9. Aufl. Stuttgart: Thieme; 2005. p. 334–87.
4. Minden K, Niewerth M. Rheumakranke Kinder und Jugendliche, Kerndokumentation und Prognose. Monatsschr Kinderheilkd. 2012;160:237–43.
5. Tonkin MA. The upper limb in cerebral palsy. Curr Orthop. 1995;9(3):149–55.