| article html file updated | 5 February 2020 13:59 CET | Update | https://www.mdpi.com/1660-3397/8/4/835 |
| article html file updated | 9 May 2019 07:31 CEST | Update | - |
| article html file updated | 19 March 2019 23:09 CET | Update | - |
| article html file updated | 16 June 2015 08:51 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/1660-3397/8/4/835/xml |
| article html file updated | 6 February 2013 16:56 CET | Update | - |
| article html file updated | 5 February 2013 21:06 CET | Update | - |
| article html file updated | 28 January 2013 18:40 CET | Update | - |
| article html file updated | 25 January 2013 21:31 CET | Update | - |
| article html file updated | 21 January 2013 21:52 CET | Update | - |
| article html file updated | 18 January 2013 03:46 CET | Original file | - |
