| article html file updated | 5 February 2020 15:00 CET | Update | https://www.mdpi.com/1660-3397/8/7/2142 |
| article html file updated | 9 May 2019 05:21 CEST | Update | - |
| article html file updated | 20 March 2019 01:45 CET | Update | - |
| article html file updated | 16 June 2015 10:46 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/1660-3397/8/7/2142/xml |
| article html file updated | 6 February 2013 18:07 CET | Update | - |
| article html file updated | 5 February 2013 22:10 CET | Update | - |
| article html file updated | 28 January 2013 19:42 CET | Update | - |
| article html file updated | 25 January 2013 22:54 CET | Update | - |
| article html file updated | 22 January 2013 02:03 CET | Update | - |
| article html file updated | 18 January 2013 08:09 CET | Original file | - |
