| article html file updated | 5 February 2020 17:27 CET | Update | https://www.mdpi.com/2072-6694/3/2/2667 |
| article html file updated | 8 January 2020 13:55 CET | Update | - |
| article html file updated | 19 September 2019 04:39 CEST | Update | - |
| article html file updated | 9 May 2019 00:30 CEST | Update | - |
| article html file updated | 20 March 2019 07:55 CET | Update | - |
| article html file updated | 16 June 2015 16:35 CEST | Update | - |
| article html file updated | 4 September 2013 15:09 CEST | Update | - |
| article xml file uploaded | 4 September 2013 15:09 CEST | Update | https://www.mdpi.com/2072-6694/3/2/2667/xml |
| article html file updated | 30 August 2013 09:03 CEST | Update | - |
| article xml file uploaded | 30 August 2013 09:03 CEST | Update | - |
| article html file updated | 29 August 2013 09:01 CEST | Update | - |
| article xml file uploaded | 29 August 2013 09:01 CEST | Update | - |
| article html file updated | 27 August 2013 11:54 CEST | Update | - |
| article xml file uploaded | 27 August 2013 11:54 CEST | Original file | - |
| article html file updated | 6 February 2013 21:23 CET | Update | - |
| article html file updated | 6 February 2013 01:14 CET | Update | - |
| article html file updated | 28 January 2013 22:39 CET | Update | - |
| article html file updated | 26 January 2013 02:58 CET | Update | - |
| article html file updated | 22 January 2013 17:16 CET | Original file | - |
