Picking, Richard; Grout, Vic; Casas, Roberto; Blasco, Ruben: 'E-servant: an intelligent, programmable system to support and integrate assisted living technologies', Healthcare Technology Letters, 2014, 1, (2), p. 64-67, DOI: 10.1049/htl.2014.0052
IET Digital Library, https://digital-library.theiet.org/;jsessionid=2ubil1ljcl6f6.x-iet-live-01content/journals/10.1049/htl.2014.0052