Abedi, A. (2004), Anti-Political Establishment Parties: A Comparative Analysis (Abingdon: Routledge).
Albertazzi, D. and McDonnell, D. (2005), ‘The Northern League in the Second Berlusconi Government: In a League of its Own’, West European Politics, 28(5): 952–972.
Ball, T. (1999), ‘From “Core” to “Sore” Concepts: Ideological Innovation and Conceptual Change’, Journal of Political Ideologies, 4(3): 391–396.
Batory, A. (2016), ‘Populists in Government? Hungary’s “System of National Cooperation”’, Democratization, 23(2): 283–303.
Bolleyer, N. (2008), ‘The Organizational Costs of Public Office’, in K. Deschouwer (ed.), New Parties in Government: In Power for the First Time (Abingdon: Routledge): 17–44.
Capoccia, G. (2002), ‘Anti-System Parties: A Conceptual Reassessment’, Journal of Theoretical Politics, 14(1): 9–35.
Cotta, M. (1996), ‘La crisi del governo di partito all’italiana’, in M. Cotta and P. Isernia (eds), Il gigante dai piedi d’argilla (Bologna: Il Mulino): 11–52.
De Swaan, A. (1973), Coalition Theories and Cabinet Formations (Amsterdam: Elsevier).
De Vries, C.E. and Hobolt, S.B. (2012), ‘When Dimensions Collide: The Electoral Success of Issue Entrepreneurs’, European Union Politics, 13(2): 246–268.
Enyedi, Z. (2015), ‘Plebeians, Citoyens and Aristocrats or Where is the Bottom of Bottom-Up? The Case of Hungary’, in H. Kriesi and T. Pappas (eds), European Populism in the Shadow of the Great Recession (Colchester: ECPR Press): 235–250.
Fowler, B. (2004), ‘Concentrated Orange: Fidesz and the Remaking of the Hungarian Centre-Right, 1994–2002’, Journal of Communist Studies and Transition Politics, 20(3): 80–114.
Freeden, M. (1996), Ideologies and Political Theory: A Conceptual Approach (Oxford: Clarendon Press).
Gerring, J. (2012), Social Science Methodology: A Unified Framework (Cambridge: Cambridge University Press).
Giordano, B. (1999), ‘A Place Called Padania? The Lega Nord and the Political Representation of Northern Italy’, European Urban and Regional Studies, 6(3): 215–230.
Heinisch, R. (2008), ‘Austria: The Structure and Agency of Austrian Populism’, in D. Albertazzi and D. McDonnell (eds), Twenty-First Century Populism: The Spectre of Western European Democracy (Basingstoke: Palgrave Macmillan): 67–83.
Hobolt, S.B. and Tilley, J. (2016), ‘Fleeing the Centre: The Rise of Challenger Parties in the Aftermath of the Euro Crisis’, West European Politics, 39(5): 971–991.
Ieraci, G. (1992), ‘Centre Parties and Anti-system Oppositions in Polarised Systems’, West European Politics, 15(2): 17–34.
Keren, M. (2000), ‘Political Perfectionism and the Anti-System Party’, Party Politics, 6(1): 107–116.
Kitschelt, H. (1986), ‘Political Opportunity Structures and Political Protest: Anti-Nuclear Movements in Four Democracies’, British Journal of Political Science, 16: 57–85.
Levite, A. and Tarrow, S. (1983), ‘The Legitimation of Excluded Parties in Dominant Party Systems: A Comparison of Israel and Italy’, Comparative Politics, 15(3): 295–327.
Luebbert, G.M. (1986), Comparative Democracy: Policymaking and Governing Coalitions in Europe and Israel (New York: Columbia University Press).
McDonnell, D. and Newell, J.L. (2011), ‘Outsider Parties in Government in Western Europe’, Party Politics, 17(4): 443–452.
Mair, P. (1997), Party System Change: Approaches and Interpretations (Oxford: Clarendon Press).
Mair, P. and Mudde, C. (1998), ‘The Party Family and its Study’, Annual Review of Political Science, 1(1): 211–229.
March, L. (2011), Radical Left Parties in Europe (Abingdon: Routledge).
Massetti, E. and Schakel, A.H. (2016), ‘Between Autonomy and Secession: Decentralization and Regionalist Party Ideological Radicalism’, Party Politics, 22(1): 59–79.
Meguid, B. (2010), Party Competition between Unequals (Cambridge: Cambridge University Press).
Mudde, C. (2004), ‘The Populist Zeitgeist’, Government and Opposition: An International Journal of Comparative Politics, 39(4): 542–563.
Mudde, C. (2006), ‘Anti-System Politics’, in P.M. Heywood, E. Jones, M. Rhodes and U. Sedelmeir (eds), Developments in European Politics (Basingstoke: Palgrave Macmillan): 178–195.
Mudde, C. (2007), Populist Radical Right Parties in Europe (Cambridge: Cambridge University Press).
Mudde, C. (2014), ‘Fighting the System? Populist Radical Right Parties and Party System Change’, Party Politics, 20(2): 217–226.
Mudde, C. (2016b), ‘The Study of Populist Radical Right Parties: Towards a Fourth Wave’, C-REX Working Paper Series, no. 1.
Norris, P. (2011), Democratic Deficit: Critical Citizens Revisited (Cambridge: Cambridge University Press).
Pappas, T.S. (2014a), Populism and Crisis Politics in Greece (Basingstoke: Palgrave Macmillan).
Pappas, T.S. (2014b), ‘Populist Democracies: Post-Authoritarian Greece and Post-Communist Hungary’, Government and Opposition: An International Journal of Comparative Politics, 49(1): 1–23.
Pasquino, G. and Valbruzzi, M. (2013), ‘Post-electoral Politics in Italy: Institutional Problems and Political Perspectives’, Journal of Modern Italian Studies, 18(4): 466–484.
Pirro, A.L.P. (2015), The Populist Radical Right in Central and Eastern Europe: Ideology, Impact and Electoral Performance (Abingdon: Routledge).
Pitkin, H.F. (1972), Wittgenstein and Justice: On the Significance of Ludwig Wittgenstein for Social and Political Thought (Berkeley: University of California Press).
Raniolo, F. (2006), ‘Forza Italia: A Leader with a Party’, South European Society and Politics, 11(3–4): 439–455.
Sartori, G. (1966), ‘European Political Parties: The Case of Polarized Pluralism’, in J. LaPalombara and M. Weiner (eds), Political Parties and Political Development (Princeton: Princeton University Press): 136–176.
Sartori, G. (1976), Parties and Party Systems: A Framework for Analysis (Cambridge: Cambridge University Press).
Sartori, G. (1982), Teoria dei Partiti e Caso Italiano (Milan: SugarCo).
Sartori, G. (1984) (ed.), Social Science Concepts: A Systematic Analysis (Beverly Hills: Sage).
Simón, P. (2017), ‘The Challenges of the New Spanish Multipartism: Government Formation Failure and the 2016 General Election’, South European Society and Politics, published early online, January, doi: 10.1080/13608746.2016.1268292.
Smith, G. (1989), ‘Core Persistence: Change and the “People’s Party”’, West European Politics, 12(4): 157–168.
Soanes, C. and Stevenson, A. (1989) (eds), Oxford English Dictionary, 2nd edn (Oxford: Oxford University Press).
Sokhey, S.W. and Yildirim, A.K. (2013), ‘Economic Liberalization and Political Moderation: The Case of Anti-System Parties’, Party Politics, 19(2): 230–255.
Tarchi, M. (2003), L’Italia populista: dal qualunquismo ai girotondi (Bologna: Il Mulino).
Vossen, K. (2016), The Power of Populism: Geert Wilders and the Party for Freedom in the Netherlands (Abingdon: Routledge).
Zulianello, M. (2013), ‘When Political Parties Decide Not to Govern: Party Strategies and the Winners and Losers of the Monti Technocratic Government’, Contemporary Italian Politics, 5(3): 244–261.