| article html file updated | 16 June 2015 23:45 CEST | Update | https://www.mdpi.com/1424-8220/12/5/5906 |
| article html file updated | 14 August 2014 12:05 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:05 CEST | Original file | https://www.mdpi.com/1424-8220/12/5/5906/xml |
| article html file updated | 7 February 2013 12:11 CET | Update | - |
| article html file updated | 7 February 2013 02:10 CET | Update | - |
| article html file updated | 6 February 2013 07:35 CET | Update | - |
| article html file updated | 29 January 2013 03:18 CET | Update | - |
| article html file updated | 26 January 2013 10:18 CET | Update | - |
| article html file updated | 23 January 2013 17:13 CET | Original file | - |
