| article html file updated | 5 February 2020 14:14 CET | Update | https://www.mdpi.com/1660-3397/8/4/1213 |
| article html file updated | 9 May 2019 07:00 CEST | Update | - |
| article html file updated | 19 March 2019 23:45 CET | Update | - |
| article html file updated | 16 June 2015 09:19 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/1660-3397/8/4/1213/xml |
| article html file updated | 6 February 2013 17:16 CET | Update | - |
| article html file updated | 5 February 2013 21:24 CET | Update | - |
| article html file updated | 28 January 2013 18:57 CET | Update | - |
| article html file updated | 25 January 2013 21:54 CET | Update | - |
| article html file updated | 21 January 2013 23:01 CET | Update | - |
| article html file updated | 18 January 2013 05:19 CET | Original file | - |
