Aouragh, M., Alexander, A. (2011). The Arab spring| the Egyptian experience: Sense and nonsense of the internet revolution. International Journal of Communication Vol. 5, 1344-1358. https://ijoc.org/index.php/ijoc/article/view/1191/610. Capoccia, G. (2001). Defending democracy: Reactions to political extremism in inter-war Europe. European Journal of Political Research, 39(4), 431-460. Capoccia G. (2013). Militant democracy: The institutional bases of democratic self-preservation. Annual Review of Law and Social Science, 9, 207-226. Chokoshvili, D. (2011). The Role of the internet in democratic transition: case study of the Arab spring. Budapest: Central European University. García-Marín, J. (2021). YouTube and Traditional Media: Polarization in the Catalan Political Conflict. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 31-41. Kapsa, I., Luengo, Ó.G., Musiał-Karg, M. (2021). E-Voting and Transformation of Participation in Europe: Exploring the Profile of E-Voters in Poland. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 11-29. Kirshner A.S. (2014). A theory of militant democracy: The ethics of combatting political extremism. New Haven: Yale University Press. Lerner M. (1938). It Is Later Than You Think: The Need for a Militant Democracy. New Jersey: Transaction Publishers. Loewenstein K. (1937). Militant Democracy and Fundamental Rights, I. American Political Science Review Vol. 31, No. 3, 417-432. Luengo, Ó.G., Fernández-García, B. (2021). Digital (and Traditional) Media Usage in Spanish Electoral Campaigns. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 43-56. Luengo, Ó.G., Musiał-Karg, M. (2021). Dynamics, Risks and Opportunities of Digitalization: An Introduction. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 1-9. Macintosh, A. (2008). E-Democracy and E-Participation Research in Europe. [In:] Chen, H., et al. (Eds.), Digital Government: E-Government Research, Case Studies, and Implementation, 85-102. https://doi.org/10.1007/978-0-387-71611-4_5. Müller J.W. (2016). Protecting popular self-government from the people? New normative perspectives on militant democracy. Annual Review of Political Science Vol. 19, 249-265. Päivärinta, T., Sæbø, Ø. (2006). Models of E-Democracy. Communications of the Association for Information Systems, 17(37). http://aisel.aisnet.org/cais/vol17/iss1/37. Pfersmann, O. (2004). Shaping Militant Democracy: Legal Limits to Democratic Stability. [In:] Sajó, A. (Ed.), Militant Democracy. hague: Eleven International Publishing, 47-68. Rachwał, M. (2021). The Use of ICT in the Citizens’ Legislative Initiative in Poland: State of Art and Proposals for Change. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 89-98. Rak, J., Bäcker, R. (Eds.). (2022). Neo-militant Democracies in Postcommunist Member States of the European Union. London: Routledge. Serrano-Contreras, I.-J. (2021). NLP on YouTube: A Look on Feminism. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 127-138. Zarate, J. (2017). The Cyber Attacks on Democracy. The Catalyst Fall 2017, Issue 08. https://www.bushcenter.org/catalyst/democracy/zarate-cyber-attacks-on-democracy.html. Aouragh, M., Alexander, A. (2011). The Arab spring| the Egyptian experience: Sense and nonsense of the internet revolution. International Journal of Communication Vol. 5, 1344-1358. https://ijoc.org/index.php/ijoc/article/view/1191/610. Capoccia, G. (2001). Defending democracy: Reactions to political extremism in inter-war Europe. European Journal of Political Research, 39(4), 431-460. Capoccia G. (2013). Militant democracy: The institutional bases of democratic self-preservation. Annual Review of Law and Social Science, 9, 207-226. Chokoshvili, D. (2011). The Role of the internet in democratic transition: case study of the Arab spring. Budapest: Central European University. García-Marín, J. (2021). YouTube and Traditional Media: Polarization in the Catalan Political Conflict. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 31-41. Kapsa, I., Luengo, Ó.G., Musiał-Karg, M. (2021). E-Voting and Transformation of Participation in Europe: Exploring the Profile of E-Voters in Poland. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 11-29. Kirshner A.S. (2014). A theory of militant democracy: The ethics of combatting political extremism. New Haven: Yale University Press. Lerner M. (1938). It Is Later Than You Think: The Need for a Militant Democracy. New Jersey: Transaction Publishers. Loewenstein K. (1937). Militant Democracy and Fundamental Rights, I. American Political Science Review Vol. 31, No. 3, 417-432. Luengo, Ó.G., Fernández-García, B. (2021). Digital (and Traditional) Media Usage in Spanish Electoral Campaigns. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 43-56. Luengo, Ó.G., Musiał-Karg, M. (2021). Dynamics, Risks and Opportunities of Digitalization: An Introduction. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 1-9. Macintosh, A. (2008). E-Democracy and E-Participation Research in Europe. [In:] Chen, H., et al. (Eds.), Digital Government: E-Government Research, Case Studies, and Implementation, 85-102. https://doi.org/10.1007/978-0-387-71611-4_5. Müller J.W. (2016). Protecting popular self-government from the people? New normative perspectives on militant democracy. Annual Review of Political Science Vol. 19, 249-265. Päivärinta, T., Sæbø, Ø. (2006). Models of E-Democracy. Communications of the Association for Information Systems, 17(37). http://aisel.aisnet.org/cais/vol17/iss1/37. Pfersmann, O. (2004). Shaping Militant Democracy: Legal Limits to Democratic Stability. [In:] Sajó, A. (Ed.), Militant Democracy. hague: Eleven International Publishing, 47-68. Rachwał, M. (2021). The Use of ICT in the Citizens’ Legislative Initiative in Poland: State of Art and Proposals for Change. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 89-98. Rak, J., Bäcker, R. (Eds.). (2022). Neo-militant Democracies in Postcommunist Member States of the European Union. London: Routledge. Serrano-Contreras, I.-J. (2021). NLP on YouTube: A Look on Feminism. [In:] Luengo, Ó.G., Musiał-Karg, M. (Eds.) Digitalization of Democratic Processes in Europe. Cham: Springer, 127-138. Zarate, J. (2017). The Cyber Attacks on Democracy. The Catalyst Fall 2017, Issue 08. https://www.bushcenter.org/catalyst/democracy/zarate-cyber-attacks-on-democracy.html.