| article html file updated | 29 August 2025 20:21 CEST | Update | https://www.mdpi.com/2072-6694/4/1/39 |
| article html file updated | 15 July 2022 21:46 CEST | Update | - |
| article html file updated | 5 February 2020 19:12 CET | Update | - |
| article html file updated | 19 September 2019 07:58 CEST | Update | - |
| article html file updated | 8 May 2019 20:48 CEST | Update | - |
| article html file updated | 25 March 2019 08:56 CET | Update | - |
| article html file updated | 16 June 2015 21:16 CEST | Update | - |
| article html file updated | 7 February 2013 09:53 CET | Update | - |
| article html file updated | 7 February 2013 00:23 CET | Update | - |
| article html file updated | 6 February 2013 05:40 CET | Update | - |
| article html file updated | 1 February 2013 09:32 CET | Update | - |
| article xml file uploaded | 1 February 2013 09:32 CET | Original file | https://www.mdpi.com/2072-6694/4/1/39/xml |
| article html file updated | 29 January 2013 01:25 CET | Update | - |
| article html file updated | 26 January 2013 07:39 CET | Update | - |
| article html file updated | 23 January 2013 08:14 CET | Original file | - |