Farrall, Stephen, Hunter, Ben, Sharpe, Gilly and Calverley, Adam (2015) What ‘works’ when retracing sample members in a qualitative longitudinal study? Journal International Journal of Social Research Methodology, 19 (3). pp. 287-300. ISSN 1364-5579 (Print), 1464-5300 (Online) (doi:https://doi.org/10.1080/13645579.2014.993839)