Frijters D., Achterberg W., Hirdes J.P, Fries B.E, Morris J.N, Steel K..  2001.  [Integrated health information system based on Resident Assessment Instruments]. Tijdschr Gerontol Geriatr. 32(1):8-16.

Morris J.N, Fries B.E, Frijters D., Hirdes J.P, Steel R.K.  2013.  interRAI home care quality indicators. BMC Geriatr. 13:127.