| article html file updated | 5 February 2020 11:13 CET | Update | https://www.mdpi.com/1420-3049/7/1/1 |
| article html file updated | 9 May 2019 13:31 CEST | Update | N/A |
| article html file updated | 19 March 2019 16:28 CET | Update | N/A |
| article html file updated | 11 September 2018 03:30 CEST | Update | N/A |
| article html file updated | 14 March 2017 06:38 CET | Original file | N/A |
| Correction published | 31 January 2002 00:00 CET | Correction | http://www.mdpi.com/1420-3049/8/8/607 |
