Birken, Thomas, Helga Pelizäus-Hoffmeister, Petra Schweiger, and Rainer Sontheimer. 2017. “Technology for Independent Living in Old Age. A Research Strategy for Context-Integrating and Practice-Centered Needs Assessments”. Forum Qualitative Sozialforschung Forum: Qualitative Social Research 19 (1). https://doi.org/10.17169/fqs-19.1.2871.