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