| article html file updated | 29 August 2025 20:24 CEST | Update | https://www.mdpi.com/2224-2708/1/2/86 |
| article html file updated | 15 July 2022 21:52 CEST | Update | N/A |
| article html file updated | 5 February 2020 20:56 CET | Update | N/A |
| article html file updated | 8 May 2019 17:01 CEST | Update | N/A |
| article html file updated | 25 March 2019 12:18 CET | Update | N/A |
| article html file updated | 17 June 2015 00:39 CEST | Update | N/A |
| article html file updated | 7 February 2013 13:08 CET | Update | N/A |
| article html file updated | 7 February 2013 03:00 CET | Update | N/A |
| article html file updated | 6 February 2013 08:28 CET | Update | N/A |
| article html file updated | 29 January 2013 04:55 CET | Update | N/A |
| article html file updated | 26 January 2013 11:33 CET | Update | N/A |
| article html file updated | 23 January 2013 20:45 CET | Original file | N/A |
