| article html file updated | 16 June 2015 15:00 CEST | Update | https://www.mdpi.com/1999-4893/4/1/61 |
| article html file updated | 14 August 2014 11:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:06 CEST | Update | https://www.mdpi.com/1999-4893/4/1/61/xml |
| article html file updated | 14 August 2014 10:58 CEST | Update | - |
| article xml file uploaded | 14 August 2014 10:58 CEST | Update | - |
| article html file updated | 12 August 2014 11:31 CEST | Update | - |
| article xml file uploaded | 12 August 2014 11:30 CEST | Original file | - |
| article html file updated | 6 February 2013 20:24 CET | Update | - |
| article html file updated | 6 February 2013 00:16 CET | Update | - |
| article html file updated | 28 January 2013 21:44 CET | Update | - |
| article html file updated | 26 January 2013 01:43 CET | Update | - |
| article html file updated | 22 January 2013 12:52 CET | Original file | - |
