AbbottA. (1992) What do cases do? Some notes on activity in sociological analysis. In RaginC.C., & BeckerH.S. (eds) What is a Case? Exploring the Foundations of Social Inquiry.Cambridge, UK: Cambridge University Press, pp. 53–82.
2.
AlyanakA., & KeymanE. (2002) Marketing research in complexity, proceedings of the ESOMAR Congress, September.
3.
BartonA.H. (1955) The concept of property space in social research. In LazarsfeldP.F., & RosenbergM. (eds) The Language of Social Research.Glencoe: Free Press.
4.
BasiR.K. (1999) World Wide Web response rates to socio-demographic items. Journal of the Market Research Society, 41, 4, pp. 397–441.
5.
DrassK., & RaginC.C. (1992) QCA: Qualitative Comparative Analysis.Evanston: Institute for Policy Research, Northwestern University.
6.
HershH.M., & CaramazzaA.A. (1976) A fuzzy set approach to modifiers and vagueness in natural language. Journal of Experimental Psychology, 105, pp. 254–276.
7.
KentR., & BrandalH. (2003) Improving email response in a permission marketing context. International Journal of Market Research, 45, 4, pp. 489–503.
8.
KentR., & LeeM. (1999) Using the internet for market research: a study of private trading on the internet. Journal of the Market Research Society, 41, 4, pp. 177–285.
LazarsfeldP.F. (1937) Some remarks on typological procedures in social research. Zeitschrift Fur Sozialforschung, 6, pp. 119–139.
11.
RaginC.C. (1987) The Comparative Method. Moving Beyond Qualitative and Quantitative Strategies, Berkeley, CA: University of California Press.
12.
RaginC.C. (1992) ‘Casing’ and the process of social inquiry. In RaginC.C., & BeckerH.S. (eds) What is a Case? Exploring the Foundations of Social Inquiry.Cambridge, UK: Cambridge University Press, pp. 53–82.
13.
RaginC.C. (2000) Fuzzy-set Social Science.Chicago: University of Chicago Press.
14.
RaginC.C., & BeckerH.S. (eds) (1992) What is a Case? Exploring the Foundations of Social Inquiry.Cambridge, UK: Cambridge University Press.
15.
RaginC.C., DrassK., & DaveyS. (2003) Fuzzy-set/Qualitative Comparative Analysis 1.1.Tucson, Arizona: Department of Sociology, University of Arizona.
16.
SmithsonM. (1988) Fuzzy set theory and the social sciences: the scope for applications. Fuzzy Sets and Systems, 26, pp. 121. Datasystems, 26, 5, pp. 13–18.
17.
ZadehL. (1965) Fuzzy sets. Information and Control, 8, pp. 338–353.
18.
ZimmermanH.J., & ZysnoP. (1980) Latent connectives in human decision making. Fuzzy Sets and Systems, 4, pp. 37–51.