| article html file updated | 16 June 2015 10:48 CEST | Update | https://www.mdpi.com/1424-8220/10/7/6821 |
| article html file updated | 28 April 2014 11:13 CEST | Update | - |
| article xml file uploaded | 28 April 2014 11:13 CEST | Original file | https://www.mdpi.com/1424-8220/10/7/6821/xml |
| article html file updated | 6 February 2013 18:08 CET | Update | - |
| article html file updated | 5 February 2013 22:11 CET | Update | - |
| article html file updated | 28 January 2013 19:42 CET | Update | - |
| article html file updated | 25 January 2013 22:55 CET | Update | - |
| article html file updated | 22 January 2013 02:07 CET | Update | - |
| article html file updated | 18 January 2013 08:12 CET | Original file | - |
