1
Published: Phoenix, 2011
2
Published: Berlin, 2011
Book
3
Published: Deutscher Bundesrat, 2014, 2015, 2016
4
Published: Bundesrat, 2014
5
6
Published: NDR ZDF, 2012
7
Published: 3 SAT, 2005
8
9
Published: MDR, 2010
10
11
12
13
Published: WDR, 2002
14
15
16
Published: Gorzów Wielkopolski, 2014
Book
17
18
19
20
Published: München [u.a.] : Prestel, 2003
Book