German | paperback | 232 p. | 1991
English | hardback | 136 p. | 1991
French | paperback | 348 p. | 2020
German | paperback | 176 p. | 2012
German | paperback | 228 p. | 2016
English | paperback | 368 p. | 2019
English | hardback | 136 p. | 1991
German | paperback | 62 p. | 2017