1. Adenauer K.(1946)‘Rede in der Aula der Universität zu Köln’ 24 March 1946. Available at:https://www.konrad‐adenauer.de/quellen/reden/1946‐03‐24‐uni‐koeln(accessed 15 May 2020).
2. Alternative für Deutschland(2016) ‘Programm für Deutschland’. Available at:https://cdn.afd.tools/wp‐content/uploads/sites/111/2018/01/Programm_AfD_Druck_Online_190118.pdfaccessed 16 September 2020.
3. Bale T.&Szczerbiak A.(2006) ‘Why Is There No Christian Democracy in Poland (and Why Does This Matter)?’ SEI Working Paper No 91.
4. Europe and Its Discontents;Benedict XVI;First Things,2006