German | hardback | 183 p. | 2017
German | paperback | 64 p. | 2015
English | paperback | 290 p. | 2012
English | paperback | 188 p. | 2017
English | paperback | 190 p. | 2018
English | paperback | 128 p. | 2011
English | hardback | 176 p. | 2012
German | hardback | 112 p. | 2016
English | paperback | 272 p. | 2017
English | paperback | 128 p. | 2004
English | paperback | 64 p. | 2017
English | hardback | 192 p. | 2017
English | paperback | 228 p. | 2015