1. Blumer, H. (1969). Symbolic interactionism: Perspectives and method. Englewood Cliffs: Prentice Hall.
2. Bogner, A., Littig, B., & Menz, W. (2009). Expert interviews—An introduction to a new methodological debate. In A. Bogner, B. Littig, & W. Menz (Eds.), Interviewing experts (pp. 1–13). Basingstoke, Hampshire, UK: Palgrave Macmillan.
3. Brinkman, S., & Kvale, S. (2015). InterViews: Learning the craft of qualitative research interviewing (3rd ed.). London: Sage.
4. Charmaz, K. (2006). Constructing grounded theory: A practical guide through qualitative analysis. London: Sage.
5. Engel, C. (2008). The difficult reception of rigorous descriptive social science in the law. In N. Stehr & B. Weiler (Eds.), Who owns Knowledges? Knowledge and the law (p. 331). Piscataway, NJ: Transaction Publishers.