| November 15, 2021 | Edited by Gustav-Landauer-Bibliothek Witten | merge authors |
| February 2, 2011 | Edited by AMillarBot | merge authors |
| August 29, 2008 | Edited by RenameBot | fix author name |
| April 1, 2008 | Created by an anonymous user | initial import |
| November 15, 2021 | Edited by Gustav-Landauer-Bibliothek Witten | merge authors |
| February 2, 2011 | Edited by AMillarBot | merge authors |
| August 29, 2008 | Edited by RenameBot | fix author name |
| April 1, 2008 | Created by an anonymous user | initial import |