1. ACEA (2019a) ACEA Pocket guide 2018-2019
2. ACEA (2019b) Consolidated registration figures
3. Armingeon K, Isler C, Knöpfel L, Weisstanner D, Engler S (2016) Comparative political data set 1960-2014
4. Atkinson MM, Coleman WD (1989) Strong states and weak states: sectoral policy networks in advanced capitalist economies. Br J Polit Sci 19(1):47–67
5. Aydin U (2006) Politics of state aid in the European Union: subsidies as distributive politics. In: Fifteenth international conference of the council for European studies, Chicago, IL, 29 March-1 April, 2006