| article html file updated | 5 February 2020 16:30 CET | Update | https://www.mdpi.com/1660-4601/8/2/321 |
| article html file updated | 19 September 2019 02:55 CEST | Update | - |
| article html file updated | 9 May 2019 02:21 CEST | Update | - |
| article html file updated | 20 March 2019 05:28 CET | Update | - |
| article html file updated | 16 June 2015 13:57 CEST | Update | - |
| article html file updated | 14 August 2014 11:42 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:42 CEST | Update | https://www.mdpi.com/1660-4601/8/2/321/xml |
| article html file updated | 14 August 2014 11:22 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:22 CEST | Original file | - |
| article html file updated | 6 February 2013 19:43 CET | Update | - |
| article html file updated | 5 February 2013 23:38 CET | Update | - |
| article html file updated | 28 January 2013 21:09 CET | Update | - |
| article html file updated | 26 January 2013 00:53 CET | Update | - |
| article html file updated | 22 January 2013 09:40 CET | Original file | - |
