AAL-Kongress Frankfurt am Main, Germany, SpringerLink (Online service), Wichert, R., & Mand, B. (2017). Ambient assisted living: 9. AAL-Kongress, Frankfurt/M, Germany, April 20-21, 2016. Springer International Publishing. https://doi.org/10.1007/978-3-319-52322-4
Cita Chicago (17th ed.)AAL-Kongress Frankfurt am Main, Germany, SpringerLink (Online service), Reiner Wichert, i Beate Mand. Ambient Assisted Living: 9. AAL-Kongress, Frankfurt/M, Germany, April 20-21, 2016. Cham: Springer International Publishing, 2017. https://doi.org/10.1007/978-3-319-52322-4.
Cita MLA (9th ed.)AAL-Kongress Frankfurt am Main, Germany, et al. Ambient Assisted Living: 9. AAL-Kongress, Frankfurt/M, Germany, April 20-21, 2016. Springer International Publishing, 2017. https://doi.org/10.1007/978-3-319-52322-4.