| article html file updated | 5 February 2020 21:50 CET | Update | https://www.mdpi.com/2072-4292/4/9/2554 |
| article html file updated | 8 May 2019 15:06 CEST | Update | - |
| article html file updated | 20 March 2019 12:08 CET | Update | - |
| article html file updated | 17 June 2015 02:05 CEST | Update | - |
| article html file updated | 14 August 2014 12:05 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:05 CEST | Update | https://www.mdpi.com/2072-4292/4/9/2554/xml |
| article html file updated | 7 February 2013 14:48 CET | Update | - |
| article html file updated | 7 February 2013 05:50 CET | Update | - |
| article html file updated | 6 February 2013 10:07 CET | Update | - |
| article html file updated | 29 January 2013 06:23 CET | Update | - |
| article html file updated | 24 January 2013 01:22 CET | Update | - |
| article html file updated | 16 January 2013 14:42 CET | Original file | - |
| article xml file uploaded | 16 January 2013 14:41 CET | Original file | - |
