| article html file updated | 29 August 2025 20:24 CEST | Update | https://www.mdpi.com/1424-2818/4/3/258 |
| article html file updated | 15 July 2022 21:52 CEST | Update | - |
| article html file updated | 5 February 2020 20:55 CET | Update | - |
| article html file updated | 19 September 2019 11:23 CEST | Update | - |
| article html file updated | 8 May 2019 17:04 CEST | Update | - |
| article html file updated | 25 March 2019 12:15 CET | Update | - |
| article html file updated | 17 June 2015 00:37 CEST | Update | - |
| article html file updated | 7 February 2013 13:05 CET | Update | - |
| article html file updated | 7 February 2013 02:58 CET | Update | - |
| article html file updated | 6 February 2013 08:26 CET | Update | - |
| article html file updated | 29 January 2013 04:52 CET | Update | - |
| article html file updated | 26 January 2013 11:30 CET | Update | - |
| article html file updated | 23 January 2013 20:39 CET | Original file | - |
