1. Ergebnisse der ard/zdf-onlinestudie 2020 (2020). https://www.ard-zdf-onlinestudie.de/files/2020/2020-10-12_Onlinestudie2020_Publikationscharts.pdf
2. Ammari, T., Kaye, J., Tsai, J.Y., Bentley, F.: Music, search, and IoT. ACM Trans. Comput.-Human Interact. 26(3), 1–28 (2019). https://doi.org/10.1145/3311956
3. Arnold, R., Schneider, A.: Intelligenz aus der konserve - sprachassistenten in deutschland: Kurzstudie - August 2019. https://www.hs-fresenius.de/wp-content/uploads/WIK_HSFresenius_Kurzstudie_Sprachassistenten_August_2019-1.pdf
4. Berdasco, A., López, G., Diaz, I., Quesada, L., Guerrero, L.A.: User experience comparison of intelligent personal assistants: Alexa, google assistant, Siri and Cortana. Proceedings 31(1), 51 (2019). https://doi.org/10.3390/proceedings2019031051
5. Beyto GmbH: Beyto smart speaker studie 2020 | deutschland (2020). https://mcusercontent.com/cab8c0a7e9a3fef590fd49ce1/files/3cf2966b-5b46-4f79-a597-80fcdb04fcff/Beyto_Smart_Speaker_Studie_2020_Studienreport.pdf