| 2025-05-09 16:43:52 | ltk_tscc | Updated Guus Surtel's membership of Dutch Muggers Association: set as ex-member |
| 2016-02-21 15:04:17 | ltk_tscc | Added credit for Guus Surtel on ST News – Final Compendium: Text (Articles) |
| 2016-01-07 19:30:12 | ltk_tscc | Set location to Netherlands |
| 2016-01-07 19:29:36 | ltk_tscc | Added Guus Surtel as a member of Dutch Muggers Association |
| 2015-06-27 15:26:14 | ltk_tscc | Added credit for Guus Surtel on ST News - Volume 2 Compendium: Text (Articles) |
| 2015-06-27 10:10:37 | ltk_tscc | Added credit for Guus Surtel on ST News - Volume 2 Issue 5: Text (Articles) |