| article html file updated | 16 June 2015 11:48 CEST | Update | https://www.mdpi.com/1424-8220/10/9/8705 |
| article html file updated | 28 April 2014 11:22 CEST | Update | - |
| article xml file uploaded | 28 April 2014 11:22 CEST | Original file | https://www.mdpi.com/1424-8220/10/9/8705/xml |
| article html file updated | 6 February 2013 18:34 CET | Update | - |
| article html file updated | 5 February 2013 22:33 CET | Update | - |
| article html file updated | 28 January 2013 20:05 CET | Update | - |
| article html file updated | 25 January 2013 23:27 CET | Update | - |
| article html file updated | 22 January 2013 04:23 CET | Update | - |
| article html file updated | 18 January 2013 09:53 CET | Original file | - |
