| article html file updated | 16 June 2015 15:26 CEST | Update | https://www.mdpi.com/2072-6694/3/2/1899 |
| article html file updated | 4 September 2013 15:06 CEST | Update | - |
| article xml file uploaded | 4 September 2013 15:06 CEST | Update | https://www.mdpi.com/2072-6694/3/2/1899/xml |
| article html file updated | 30 August 2013 08:59 CEST | Update | - |
| article xml file uploaded | 30 August 2013 08:59 CEST | Update | - |
| article html file updated | 29 August 2013 08:58 CEST | Update | - |
| article xml file uploaded | 29 August 2013 08:58 CEST | Update | - |
| article html file updated | 27 August 2013 11:50 CEST | Update | - |
| article xml file uploaded | 27 August 2013 11:50 CEST | Original file | - |
| article html file updated | 6 February 2013 20:39 CET | Update | - |
| article html file updated | 6 February 2013 00:30 CET | Update | - |
| article html file updated | 28 January 2013 21:58 CET | Update | - |
| article html file updated | 26 January 2013 02:02 CET | Update | - |
| article html file updated | 22 January 2013 14:09 CET | Original file | - |
