1. 1 Altheide D.L. & Johnson J.M. (1994) Criteria for assessing interpretative validity in qualitative research. In Handbook of Qualitative Research (Denzin N. & Lincoln Y.S. eds), Sage London, pp. 485-499.
2. Method slurring: the grounded theory/phenomenology example;Baker;Journal of Advanced Nursing,1992
3. Common pitfalls in published grounded theory research;Becker;Qualitative Health Research,1993
4. 4 Berger P. & Kellner H. (1981) Sociology Reinterpreted. Anchor Books, New York.
5. Sampling in qualitative research: purposeful and theoretical sampling; merging or clear boundaries?;Coyne;Journal of Advanced Nursing,1997