TY - JOUR T1 - Knocking on doors: recruitment and enrichment in a qualitative interview-based study JO - International Journal of Social Research Methodology PY - 2011/07/01 AU - Davies K ED - DO - DOI: 10.1080/13645579.2010.516645 VL - 14 IS - 4 SP - 289 EP - 300 Y2 - 2024/12/22 ER -