Egon G. Guba and T. Lincoln: Fourth Generation Evaluation, Angela Everitt and Pauline Hardiker: Evaluating for Good Practice, : Ray Pawson and Nick Tilley: Realistic Evaluation, and Alan Clarke: Evaluation Research: An Introduction to Principles, Methods and Practice Carpenter, Mick,, 9, 305-310 (2004), doi = https://doi.org/10.1075/cat.9.3.07car, publicationName = John Benjamins, issn = 1384-6639, abstract= , language=, type=