| article html file updated | 5 February 2020 14:41 CET | Update | https://www.mdpi.com/1660-3397/8/6/1769 |
| article html file updated | 9 May 2019 06:00 CEST | Update | - |
| article html file updated | 20 March 2019 00:49 CET | Update | - |
| article html file updated | 16 June 2015 10:05 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/1660-3397/8/6/1769/xml |
| article html file updated | 6 February 2013 17:45 CET | Update | - |
| article html file updated | 5 February 2013 21:52 CET | Update | - |
| article html file updated | 28 January 2013 19:24 CET | Update | - |
| article html file updated | 25 January 2013 22:30 CET | Update | - |
| article html file updated | 22 January 2013 00:44 CET | Update | - |
| article html file updated | 18 January 2013 06:57 CET | Original file | - |
