Geurts, Helene; Haelewyck, Marie-Claire; Valderrama, Carlos: 'Ethics in information and communication technologies: training the elderly in making gerontechnology accessible' (Healthcare Technologies, 2017), 'Enhanced Living Environments: From models to technologies', Chap. 4, pp. 81-99, DOI: 10.1049/PBHE010E_ch4
IET Digital Library, https://digital-library.theiet.org/;jsessionid=4xhw1vhcs2pq.x-iet-live-01content/books/10.1049/pbhe010e_ch4