Resources > Bibliographical Database > Discussion about Fuzzy Sets QCA (fsQCA)

Discussion about Fuzzy Sets QCA (fsQCA)

  1. ANONYMOUS (2003), Two-Level Theories and Fuzzy-Set Logic (unpublished manuscript).

  2. ARFI, Badredine (9.2.2004/9.5.2004), "Complex Causality in Politics: A Linguistic Fuzzy-Logic Approach", paper presented at : APSA 2004 Annual Meeting, Chicago,

  3. --------- (2005 (forthcoming)), "Fuzzy Decision Making in Politics: A Linguistic Fuzzy-Set Approach (LFSA)", Political Analysis,

  4. AYRTON, Robert (2002), Analyse en termes d'ensembles flous et son application dans l'étude des modes de mise en oeuvre cantonales de la LACI (unpublished manuscript).

  5. BALIAMOUNE-LUTZ, Mina (2004), "On the Measurement of Human Well-Being. Fuzzy Set Theory and Sen’s Capability Approach", WIDER , 16, 1-20.

  6. BERG-SCHLOSSER, Dirk (2002), "Macro-Quantitative Vs Macro-Qualitative Methods in the Social Sciences - Testing Empirical Theories of Democracy", paper presented at : Colloque de la Revue Internationale de Politique Comparée "Faire de la politique comparée au 21eme siecle" Atelier 2:outils méthodologiques, Bordeaux, France,

  7. ---------- (2002), "Macro-Quantitative Vs. Macro-Qualitative Methods in the Social Sciences. Testing Empirical Theories of Democracy", COMPASSS Working Paper, 2, 36p.

  8. BLATTER, Joachim and BLUME, Till (2008), "In Search of Co-Variance, Causal Mechanisms or Congruence? Towards a Plural Understanding of Case Studies", Swiss Political Science Review, 14, 2, 315-356.

  9. BOWMAN, Kirk, LEHOUCQ, Fabrice, and MAHONEY, James (2005), "Measuring Political Democracy. Case Expertise, Data Adequacy, and Central America", Comparative Political Studies, 38, 8, 939-970.

  10. CAT, Jordi (January 2006), "Fuzzy Empiricism and Fuzzy-Set Causality: What Is All the Fuzz About", Philosophy of Science, 73, 26-41.

  11. CHIAPPERO-MARTINETTI, Enrica (2008), "Complexity and Vagueness in the Capability Approach: Strenght or Weekness?", in COMIM, Flavio, QIZILBASH, Mozaffar, and ALKIRE, Sabina (eds), The Capability Approach. Concepts, Measures and Applications , Cambridge, Cambridge University Press, pp. 268-309.

  12. COLLIER, David (1998), "Letter From the President. Comparative Method in the 1990s", APSA-CP. Newsletter of the APSA Organized Section in Comparative Politics, 9, 1, 1-4. (Online at : http://www.nd.edu/~apsacp/pdf/APSA-CP_Winter_1998.pdf)

  13. CRONQVIST, Lasse (9.18.2003/9.21.2003), "Extending the QCA Approach With Multi-Value Scales", paper presented at : 2nd ECPR General Conference, Section "Methodological Advances in Comparative Research : Concepts, Techniques, Applications", Panel "Assessing the Respective Potential of Qualitative Comparative Analysis (QCA), Fuzzy Sets and Other Techniques : Applications", Marburg, Germany,

  14. ---------- (2007c), Konfigurationelle Analyse mit Multi-Value QCA als Methode der Vergleichenden Politikwissenschaft,University of Marburg (unpublished).

  15. CURCHOD, Corentin (2002), "Diversity-Oriented Research. Between Complexity and Generality", COMPASSS Working Paper, 4, 11p.

  16. DRIDI, Chokri and HEWINGS, Geoffrey J. D. (2002), Sectors Associations and Similarities in Input-Output Systems: an Application of Dual Scaling and Fuzzy Logic to Canada and the United States, Discussion Papers, Regional Economics Applications Laboratory (REAL),

  17. FISHMAN, Daniel (2000), "Context-Specific Logic Models: Alternative Paths to Similar Outcomes", A Topical Interest Group of the American Evaluation Association,

  18. FUHRMANN, Gy (1988), "Fuzziness of Concepts and Concepts of Fuzziness", Synthese, 75, 349-372.

  19. ---------- (1988), ""Prototypes" and "Fuzziness" in the Logic of Concepts", Synthese, 75, 317-347.

  20. GOERTZ, Gary (2003), "Assessing the Importance of Necessary or Sufficient Conditions in Fuzzy-Set Social Science", COMPASSS Working Paper, 7, 33p.

  21. ---------- (9.2.2004/9.5.2004), "Assessing the Importance of Necessary or Sufficient Conditions in Fuzzy-Set Social Science", paper presented at : APSA 2004 Annual Meeting, Chicago,

  22. ---------- (2006), "Assessing the Trivialness, Relevance, and Relative Importance of Necessary and Sufficient Conditions in Social Science", Studies in Comparative International Development, 41, 2, 88-109.

  23. GOERTZ, Gary and MAHONEY, James (2003), "Two-Level Theories and Fuzzy Logic", COMPASSS Working Paper, 6, 32p.

  24. ---------- (2004), "Two-Level Theories and Fuzzy Sets", COMPASSS Working Paper, 19, 30p.

  25. HÄRKÖNEN, Juho and KOUVO, Antti (2002), "Kirja-arvio [A Book Review in Finnish]: Ragin, Charles C. 2000. Fuzzy-Set Social Science. University of Chicago Press, Chicago/London.", Sosiologia, 39, 2, 164-166.

  26. HERRMANN, Andrea and CRONQVIST, Lasse, "Contradictions in Qualitative Comparative Analysis (QCA): A Way Out of the Dilemma", paper presented at : EUI Working Paper SPS No. 2006/06,

  27. HERRMANN, Andrea and CRONQVIST, Lasse (2005), "Fs/QCA and MVQCA: Different Answers to the Problem of Contradicting Observations in QCA", paper presented at : ECPR General Conference, Budapest, Hungary,

  28. HOLLANDER, James F. (2002), "A Quick Look at Ragin's "Fuzzy Set Social Science"", Comparative & Historical Sociology, 14, 1, 7-9.

  29. HYYRYLÄINEN, Esa (9.5.2001/9.8.2001), "Linking Organizational Strategies With Staff Participation and Involvement Schemes: Theoritical and Methodological Considerations", paper presented at : EGPA Vaasa Conference, Vaasa, Finland. (www.soc.kuleuven.ac.be/pol/io/egpa/HRM/vaasa/Esa_Hyyrylainen_EGPA_paper.doc)

  30. HÄGE, Frank M. (2005), "Constructivism, Fuzzy Sets and (Very) Small-N: Revisiting the Conditions for Communicative Action", COMPASSS Working Paper, 33, 32p.

  31. ISHIDA, Atsushi (2003), Fs/QCA No Tsukaikata. [How to Use Fs/QCA] (unpublished manuscript).

  32. KATZ, Aaron, VOM HAU, Matthias, and MAHONEY, James (2004), "Explaining the Great Reversal in Spanish America: Fuzzy-Set Methods Versus Statistical Methods", paper presented at : Annual Meeting of the American Political Science Association,

  33. KENT, Ray, "A Brief Guide and Workshop for Fuzzy-Set Qualitative Comparative Analysis", paper presented at : Systematic Mixed Methods Research Workshop, Manchester,

  34. KENT, Ray, "Empirical Approaches in the Use of Fuzzy Set Analysis", paper presented at : Expert Roundtable on the Study of Strategies of Social Change Using the Method of Qualitative Comparatvie Analysis (QCA), Manchester,

  35. KLIR, George J., CLAIR, Ute St., and YUAN, Bo (1997), Fuzzy Sets Theory. Foundations and Applications, Englewood Cliffs, NJ, Prentice Hall PTR.

  36. KOSKO, Bart (1993), Fuzzy Thinking: the New Science of Fuzzy Logic, New-York, Hyperion.

  37. KROOK, Mona Lena (09.08.2005/09.10.2005), "Temporality and Causal Configurations: Combining Sequences Analysis and Fuzzy Set/Qualitative Comparative Analysis", paper presented at : General Conference of the European Consortium for Political Research, Budapest Hungary,

  38. KVIST, John (2007), "Fuzzy Set Ideal Type Analysis", Journal of Business Research, 60, 474-481.

  39. KVIST, Jon (2003), "Conceptualisation, Configuration, and Categorisation. Diversity, Ideal Types and Fuzzy Sets in Comparative Welfare State Research", COMPASSS Working Papers, 15, 29p.

  40. KVIST, Jon (2004), "Conceptualisation, Configuration, and Categorisation. Diversity, Ideal Types and Fuzzy Sets in Comparative Welfare State Research", paper presented at : ESF Exploratory Workshop on "Innovative Comparative Methods for Policy Analysis", Erfurt,

  41. LEE, Sophia (2008), "A Critique of the Fuzzy-Set Methods in Comparative Social Policy. A Critical Introduction and Review of the Applications of Fuzzy-Set Methods.", COMPASSS Working Paper WP-,

  42. LIEBERSON, Stanley (1985), Making It Count : the Improvement of Social Research and Theory, Berkeley, University of California Press.

  43. LONGEST, Kyle and VAISEY Stephen (May 4, 2007), Fuzzy: a Program for Performing Qualitative Comparative Analysis (QCA) in Stata (unpublished manuscript).

  44. MAGGETTIN, Martino (2007), "De Facto Independence After Delegation: A Fuzzy-Set Analysis", Regulation & Governance, 1, 271-294.

  45. MAHONEY, James (2004), "Introduction: A Note on Terminology", Qualitative Methods: Newsletter of the American Political Science Association Organized Section on Qualitiative Methods, 2, 2, 2.

  46. MAHONEY, James (2004), "Reflections on Fuzzy-Set/QCA", Qualitative Methods: Newsletter of the American Political Science Association Organized Section on Qualitiative Methods, 2, 2, 17-21.

  47. MAHONEY, James and GOERTZ, Gary (2004), "The Possibility Principle: Choosing Negative Cases in Comparative Research", American Political Science Review, 98, 4, 653-669.

  48. ---------- (2004), "The Possibility Principle: Choosing Negative Cases in Comparative Research", COMPASSS Working Paper, 18, 27p.

  49. MANUSCRIPT (forthcoming), Casual Complexity and FS/QCA: Making Use of Remote and Proximate Casual Conditions (unpublished manuscript).

  50. MOURY, Catherine (2004), "Les Ensembles Flous pour y voir plus clair: décoder les caractéristiques des accords de coalition en Europe Occidentale", Revue Internationale de Politique Comparée, 11, 1, 101-115.

  51. NOMURA, Hisako (3-5th June 2008), "Transforming Variable Using SPSS/TOSMANA for QCA Analysis", paper presented at : Expert Roundtable on the Study of Strategies of Social Change Using the Method of Qualitative Comparatvie Analysis (QCA), Manchester,

  52. Olsen, Wendy, "Intermediate Level Qualitative Comparative Analysis Including Fuzzy Sets." (2004): 31 pp. 2004.

  53. OLSEN, Wendy (2009), "Non-Nested and Nested Cases in a Socio-Economic Village Study", in DAVID, Byrne and RAGIN, Charles (eds), The SAGE Handbook of Case-Based Methods, England, Sage, pp. 494-510.

  54. PENNINGS, Paul (2003), "Beyond Dichotomous Explanations: Explaining Constitutional Control of the Executive With Fuzzy-Sets", European Journal of Political Research, 42, 4, 541-568.

  55. PENNINGS, Paul (2003), "The Methodology of the Fuzzy-Set Logic", in PICKEL, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef (eds), Vergleichende Politikwissenschaftliche Methoden. Neue Entwicklungen und Diskussionen, Wiesbaden, Westdeutscher Verlag, pp. 87-103.

  56. ---------- (2008), "Fuzzy-Sets and QCA - The Methodology of the Fuzzy-Set Logic and Its Application", in PICKELS, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef (eds), Methoden der vergleichenden Politik- und Sozialwissenschaft. Neue Entwicklungen und Anwendungen, Wiesbaden, VS-Verlag, pp. ²347-364.

  57. PHILLIPS, Dianne (2003), "Review Article: Research Training by the Package", Sociology, 37, 1, 165-172.

  58. PICKEL, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef (eds) (2003), Vergleichende Politikwissenschaftliche Methoden. Neue Entwicklungen und Diskussionen, Wiesbaden, Westdeutscher Verlag.

  59. RAGIN, Chalres (2009), "Reflections on Casing and Case Oriented Research", in BYRNE, David and RAGIN, Charles (eds), The SAGE Handbook of Case-Based Methods , England, Sage, pp. 522-543.

  60. RAGIN, Charles (2003), "Recent Advances in Fuzzy-Set Methods and Their Application to Policy Questions", COMPASSS Working Paper, 9, 33p. (http://www.compasss.org/Ragin2003.PDF)

  61. ---------- (9.16.2003/9.17.2003), "Recent Advances in Fuzzy-Set Methods and Their Application to Policy Questions", paper presented at : COMPASSS Launching Conference, Louvain-la-Neuve and Leuven, Belgium,

  62. ---------- (2004), "From Fuzzy Sets to Crisp Truth Tables", COMPASSS Working Paper - Re-Worked Version of the WP2004-26, 28, 34p.

  63. RAGIN, Charles (09.06.2007/09.08.2007), "Using Fuzzy Sets and Qualitative Comparative Methods to Analyse Longitudinal Data", paper presented at : 4th ECPR General Conference, Panel on "Comparative Research Design and Configurational Methods", Pisa,

  64. RAGIN, Charles (2009), " Book Reviews", Swiss Political Science Review, 15, 2, 395-426.

  65. RAGIN, Charles C. (1998), "Comparative Methodology, Fuzzy Sets and the Study of Sufficient Causes", APSA-CP. Newsletter of the APSA Organized Section in Comparative Politics, 9, 1, 18-22. (Online at : http://www.nd.edu/~apsacp/pdf/APSA-CP_Winter_1998.pdf)

  66. RAGIN, Charles C. (2000), Fuzzy-Set Social Science, Chicago, Chicago University Press.

  67. RAGIN, Charles C. (2002), Course Content. Analyzing Qualitative Data on "Multiple Instances" (unpublished manuscript).

  68. ---------- (2004), "Innovative Causal Analysis and Policy Research", paper presented at : European Science Foundation Exploratory Workshop on “Innovative Comparative Methods for Policy Analysis. An Interdisciplinary European Endeavour for Methodological Advances and Improved Policy Analysis/Evaluation.”, Erfurt, Germany,

  69. RAGIN, Charles C. (2006), "The Limitations of Net-Effects Thinking", in RIHOUX, Benoît and GRIMM, Heike (eds), Innovative Comparative Methods for Policy Analysis, New-York, Springer, pp. 13-41.

  70. ---------- (2006), "Set Relations in Social Research: Evaluating Their Consistency and Coverage", Political Analysis, 14, 3, 291-310.

  71. ---------- (2007), "Calibration Versus Measurement ", in COLLIER, David, BRADY, Henry, and BOX-STEFFENSMEIER, Janet (eds), Methodology Volume of Oxford Handbooks of Political Science, New-York, Oxford University Press,

  72. ---------- (2007), "Fuzzy Sets: Calibration Versus Measurement", COMPASSS Working Paper, 44, 37p.

  73. ---------- (2008), "Qualitative Comparative Analysis Using Fuzzy Sets (FsQCA)", in RIHOUX, Benoît and RAGIN, Charles C. (eds), Configurational Comparative Methods. Qualitative Comparative Analysis (QCA) and Related Techniques , Thousand Oaks and London, Sage,

  74. ---------- (2008), Redesigning Social Inquiry: Fuzzy Sets and Beyond, Chicago, Chicago University Press.

  75. RAGIN, Charles C. (forthcoming), "Fuzzy Sets: Calibration Versus Measurement", in COLLIER, David, BRADY, Henry, and BOX-STEFFENSMEIER, Janet (eds), Methodology Volume of Oxford Handbooks of Political Science

  76. RIHOUX, Benoît (09.20.2009), "Latest Innovations in Configurational Comparative Methods and the Challenges Ahead", paper presented at : The Second Japan-UK Roundtable on the Frontiers of the Qualitative Comparative Method, Sapporo,

  77. RIHOUX, Benoît (2004), "Six applications d'Analyse Quali-Quantitative Comparée (AQQC) et des Ensembles Flous (EF): mode d'emploi et originalités [Six applications of Qualitative Comparative Analysis (QCA) and Fuzzy Sets: instructions for use and original features]", Revue Internationale de Politique Comparée, 11, 1, 11-16.

  78. ---------- (2006), "Qualitative Comparative Analysis (QCA) and Related Systematic Comparative Methods: Recent Advances and Remaining Challenges for Social Science Research", International Sociology, 21, 5, 679-706.

  79. ---------- (2008), "Case-Orientated Configurational Research: Qualitative Comparative Analysis (QCA), Fuzzy Sets, and Related Techniques", in BOX-STEFFENSMEIER, Janet, BRADY, Henry, and COLLIER, David (eds), The Oxford Handbook of Political Methodology, Oxford, Oxford University Press, pp. 722-736.

  80. ---------- (2008), "Qualitative Comparative Analysis (QCA) and Related Techniques: Recent Advances and Challenges", in PICKEL, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef (eds), Methoden der vergleichenden Politik- und Sozialwissenschaftt. Neuere Entwicklungen und Anwendungen, Wiesbaden, VS-Verlag , pp. 365-386.

  81. ---------- (forthcoming), "Configurational Methods", in BECK, Nathaliel (ed.), Encyclopedia of Political Science. Methodology Volume, Thousand Oaks, London and New Delhi, Sage,

  82. RIHOUX, Benoît and RAGIN, Charles C. (9.2.2004/9.5.2004), "Qualitative Comparative Analysis (QCA): State of the Art and Prospects", paper presented at : APSA 2004 Annual Meeting, Panel 47-9, Chicago,

  83. SCHNEIDER, Carsten Q. (07.15-16.2006), "It Might Look Like a Regression Equation... But It's Not! An Intuitive Approach to the Presentation of QCA and FS/QCA Results", paper presented at : International Conference on Comparative Social Sciences , Tokyo, Japan,

  84. SCHNEIDER, Carsten Q. and GROFMAN, Bernard (2006), "It Might Look Like a Regression Equation... but It Is Not! An Intuitive Approach to the Presentation of QCA and FSQCA Results", COMPASSS Working Paper , 39, 61p.

  85. ---------- (09.06.2007/09.08.2007), "Graphical Representations of Fuzzy Set Results: How Not to Get Your Audience Confused", paper presented at : 4th ECPR General Conference, Panel on "Comparative Research Design and Configurational Methods", Pisa,

  86. SCHNEIDER, Carsten Q. and WAGEMANN, Claudius (7.4.2002/7.7.2002), "Limited Diversity Limited Applicability? The Role of Theory in QCA-Based Studies of Democratisation ", paper presented at : "Methods of Comparative Political Science. Procedure and Examples of International and Inter-Cultural Comparative Studies" of the DVPW-Working Group "Intercultural Comparison of Democracy", University Greifswald, Germany,

  87. ---------- (9.2.2004/9.5.2004), "The Fuzzy-Set/QCA Two-Step Approach to Middle-Range Theories", paper presented at : APSA 2004 Annual Meeting, Chicago,

  88. ---------- (2006), "Reducing Complexity in Qualitative Comparative Analysis (QCA): Remote and Proximate Factors and the Consolidation of Democracy", COMPASSS Working Paper - Re-Worked Version of the WP2002-1, 35, 61p.

  89. SCHNEIDER, Carsten Q. and WAGEMANN, Claudius (2007), Qualitative Comparative Analysis (QCA) und Fuzzy Sets. Ein Lehrbuch für Anwender und jene, die es werden wollen, Opladen & Farmington Hills, Verlag Barbara Budrich.

  90. SCHNEIDER, Carsten Q. and WAGEMANN, Claudius (2008), "Standards guter Praxis in Qualitative Analysis (QCA) und Fuzzy-Sets", in PICKEL, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef (eds), Neue vergleichende sozialwissenschaftliche Methoden, Wiesbaden, VS-Verlag, pp. 387-412/.

  91. ---------- (forthcoming), Qualitative Comparative Analysis (QCA) and Fuzzy Sets. A User's Guide,

  92. SCHRODT, Philip A. (2002), "Book Review: Fuzzy-Set Social Science. By Charles Ragin.", American Political Science Review, 96, 2, 452-453.

  93. Sivesind, Karl Henrik and Per Selle, "Is There a Social Democratic Civil Society Regime in the Welfare Field?" (2004): 16pages. 2004.

  94. SKAANING, Svend-Erik (09.06.2007/09.08.2007), "Assessing the Robustness of Crisp-Set and Fuzzy-Set QCA Results", paper presented at : 4th ECPR General Conference, Panel on "Comparative Research Design and Configurational Methods", Pisa,

  95. SMITHSON, Michael (1986), Fuzzy Set Analysis for Behavioral and Social Science, New York, Springer Verlag.

  96. SMITHSON, Michael and VERKUILEN, Jay (02/2006), Fuzzy Set Theory. Applications in the Social Sciences, London, Sage Publications. (http://www.sagepub.com/book.aspx?pid=11575)

  97. STOKKE, Olav S. (2003), "Boolean Analysis, Mechanisms, and the Study of Regime Effectiveness", COMPASSS Working Paper, 5, 35p.

  98. STOKKE, Olav Schram (forthcoming 2003 (paper prepared for inclusion in Arild Underdal and Oran R. Young (eds.), Regime consequences: methodological challenges and research strategies. Dordrecht: Kluwer Academic.), Boolean Analysis, Mechanisms, and the Study of Regime Effectiveness (unpublished manuscript).

  99. VERKUILEN, Jay (Spring 2001), "Book Review: Charles Ragin, Fuzzy Set Social Science", paper presented at : APSA-CP: Newsletter of the APSA Organized Section in Comparative Politics, Washington D.C.,

  100. ---------- (8.30.2001/9.2.2001), "Measuring Fuzzy Set Membership Functions: a Dual Scaling Approach", paper presented at : Annual Meeting of the APSA, San Francisco,

  101. ---------- (10.2002), Methodological Problems in Comparative and Cross-National Analysis: Applications of Fuzzy Set Theory (PhD Dissertation),University of Illinois Urbana-Champaign (unpublished).

  102. VIEBROCK, Elke (9.9.2004/9.11.2004), "European Systems of Unemployment Insurance in Historical Comparison. The Potential of FS/QCA in Cross-Country Welfare State Research", paper presented at : ESPAnet 2004 Conference, Comparative Methodology Stream, Oxford,

  103. VIEBROCK, Elke and NORRIS, Paul (2005), "A Fuzzy-Set Based Analysis of Changing Levels of Social Expenditure in OECD Countries 1980-1998", paper presented at : ECPR General Conference, Budapest, Hungary,

  104. VINK, Maarten and VAN VLIET, Olaf (2009), "Not Quite Crisp, Not Yet Fuzzy? Assessing the Potentials and Pitfalls of Multi-Value QCA", Field Methods, 21, 3, 265-289.

  105. VINK, Maarten P. and VAN VLIET, Olaf (2009), "Not Quite Crisp, Not Yet Fuzzy? Assessing the Potentials and Pitfalls of Multi-Value QCA", Field, 21, 3, 265-289.

  106. WAGEMANN, Claudius and SCHNEIDER, Carsten (2010), "Qualitative Comparative Analysis (QCA) and Fuzzy-Sets: Agenda for a Research Approach and a Data Analysis Technique", Comparative Sociology, 9,

  107. ---------- (2010), "Standards of Good Practice in Qualitative Comparative Analysis (QCA) and Fuzzy-Sets", Comparative Sociology, 9,

  108. WAGEMANN, Claudius and SCHNEIDER, Carsten Q. (2003), "Fuzzy-Set Qualitative Comparative Analysis (Fs/QCA). Ein Zwei-Stufen-Modul", in PICKEL, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef (eds), Vergleichende Politikwissenschaftliche Methoden. Neue Entwicklungen und Diskussionen, Wiesbaden, Westdeutscher Verlag, pp. 105-134.

  109. ---------- (2003), "Fuzzy Set Qualitative Comparative Analysis (fs/QCA): ein Zweischritt-Modul", in PICKEL, Susanne, PICKEL, Gert, LAUTH, Hans-Joachim, and JAHN, Detlef, 'Titel noch nicht bekannt' (title still unknown)Westdeutscher Verlag,

  110. ---------- (2007), "Standards of Good Practice in Qualitative Comparative Analysis (QCA) and Fuzzy-Sets", COMPASSS Working Paper, 51, 35p. (http://www.compasss.org/WagemannSchneider2007.pdf)

  111. WALKUP, J. (2003), "Book Review : Fuzzy-Set Social Science", Evaluation and Program Planning, 26, 41-44.

  112. ZADEH, Lofti A. (1965), "Fuzzy-Sets", Information and Control, 8, 338-353.

  113. ZADEH, Lofti A. (1968), "Fuzzy Algorithms", Information and Control, 12, 99-102.

  114. ---------- (2002), "From Computing With Numbers to Computing With Words", Applied Mathematics, 12, 2, 307-332.