1. Verbal reports and protocol analysis;Afflerbach;Handbook of reading research,2000
2. Amidon, E.J., Hough, J.J., 1967. Interaction analysis: Theory, research and application. .
3. Talking to people iii: Expert interviews and elite interviews;Audenhove,2019
4. Introduction: Expert interviews—an introduction to a new methodological debate, in: Interviewing experts;Bogner,2009
5. The research interview, uses and approaches;Brenner,1985