1. Quantity and quality in social research;Bryman,1988
2. Sketch of a psychological phenomenological method;Giorgi,1985
3. The discovery of grounded theory: Strategies for qualitative research;Glaser,1967
4. The analysis of depth interviews;Jones,1985
5. The qualitative research interview: a phenomenological and hermeneutical mode of understanding;Kvale;Journal of Phenomenological Psychology,1983