SpringerLink (Online service), Eberhardt, B., & Wichert, R. (2011). Ambient assisted living: 4. AAL-Kongress 2011, Berlin, Germany, January 25-26, 2011. Springer.
Chicago-viite (17. p.)SpringerLink (Online service), Birgid Eberhardt, ja Reiner Wichert. Ambient Assisted Living: 4. AAL-Kongress 2011, Berlin, Germany, January 25-26, 2011. Berlin, Heidelberg: Springer, 2011.
MLA-viite (8. p.)SpringerLink (Online service), et al. Ambient Assisted Living: 4. AAL-Kongress 2011, Berlin, Germany, January 25-26, 2011. Springer, 2011.
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