| 2023-04-13 16:27:37 | dipswitch | Added Rudi as organiser of Underground Conference 2017 |
| 2023-04-13 16:20:32 | dipswitch | Added Rudi as organiser of Underground Conference 2002 |
| 2023-04-13 16:16:31 | dipswitch | Updated Rudi as organiser of Underground Conference 2001: changed organiser to Rudi |
| 2023-04-13 16:11:56 | dipswitch | Added Rudi as organiser of Underground Conference 2000 |
| 2023-04-13 16:02:31 | dipswitch | Set location to Germany |
| 2023-04-13 16:02:22 | dipswitch | Added Rudi as organiser of Underground Conference 1999 |