| article html file updated | 5 February 2020 17:54 CET | Update | https://www.mdpi.com/1660-3397/9/8/1368 |
| article html file updated | 8 May 2019 23:35 CEST | Update | - |
| article html file updated | 20 March 2019 09:02 CET | Update | - |
| article html file updated | 16 June 2015 17:45 CEST | Update | - |
| article html file updated | 14 August 2014 12:04 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:04 CEST | Original file | https://www.mdpi.com/1660-3397/9/8/1368/xml |
| article html file updated | 6 February 2013 22:12 CET | Update | - |
| article html file updated | 6 February 2013 02:00 CET | Update | - |
| article html file updated | 28 January 2013 23:23 CET | Update | - |
| article html file updated | 26 January 2013 04:21 CET | Update | - |
| article html file updated | 22 January 2013 20:31 CET | Original file | - |
