| article html file updated | 5 February 2020 17:07 CET | Update | https://www.mdpi.com/2072-6694/3/2/2176 |
| article html file updated | 8 January 2020 13:35 CET | Update | - |
| article html file updated | 19 September 2019 04:02 CEST | Update | - |
| article html file updated | 9 May 2019 01:08 CEST | Update | - |
| article html file updated | 20 March 2019 07:10 CET | Update | - |
| article html file updated | 16 June 2015 15:43 CEST | Update | - |
| article html file updated | 4 September 2013 15:07 CEST | Update | - |
| article xml file uploaded | 4 September 2013 15:07 CEST | Update | https://www.mdpi.com/2072-6694/3/2/2176/xml |
| article html file updated | 30 August 2013 09:00 CEST | Update | - |
| article xml file uploaded | 30 August 2013 09:00 CEST | Update | - |
| article html file updated | 29 August 2013 08:59 CEST | Update | - |
| article xml file uploaded | 29 August 2013 08:58 CEST | Update | - |
| article html file updated | 27 August 2013 11:51 CEST | Update | - |
| article xml file uploaded | 27 August 2013 11:51 CEST | Original file | - |
| article html file updated | 6 February 2013 20:49 CET | Update | - |
| article html file updated | 6 February 2013 00:41 CET | Update | - |
| article html file updated | 28 January 2013 22:08 CET | Update | - |
| article html file updated | 26 January 2013 02:16 CET | Update | - |
| article html file updated | 22 January 2013 15:00 CET | Original file | - |
