AAL-Kongress Berlin, Germany, SpringerLink (Online service), Wichert, R., & Eberhardt, B. (2011). Ambient assisted living: 4. AAL-Kongress 2011, Berlin, Germany, January 25-26, 2011. Springer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAAL-Kongress Berlin, Germany, SpringerLink (Online service), Reiner Wichert, और Birgid Eberhardt. Ambient Assisted Living: 4. AAL-Kongress 2011, Berlin, Germany, January 25-26, 2011. Berlin, Heidelberg: Springer, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAAL-Kongress Berlin, Germany, et al. Ambient Assisted Living: 4. AAL-Kongress 2011, Berlin, Germany, January 25-26, 2011. Springer, 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.