Baller M., Boorsma M., Frijters D.H, van Marwijk H.W, Nijpels G., van Hout H.P.  2010.  Depression in Dutch homes for the elderly: under-diagnosis in demented residents? Int J Geriatr Psychiatry. 25(7):712-8.

Boorsma M., Joling K.J, Frijters D.H, Ribbe M.E, Nijpels G., van Hout H.P.  2012.  The prevalence, incidence and risk factors for delirium in Dutch nursing homes and residential care homes. Int J Geriatr Psychiatry. 27(7):709-15.

Van Eenoo L., Declercq A., Onder G., Finne-Soveri H., Garms-Homolova V., Jonsson P.V, Dix O.H, Smit J.H, van Hout H.P, van der Roest H.G.  2016.  Substantial between-country differences in organising community care for older people in Europe-a review. Eur J Public Health. 26(2):213-9.