| article html file updated | 16 June 2015 21:12 CEST | Update | https://www.mdpi.com/1424-8220/12/1/1042 |
| article html file updated | 31 October 2013 10:28 CET | Update | - |
| article xml file uploaded | 31 October 2013 10:28 CET | Original file | https://www.mdpi.com/1424-8220/12/1/1042/xml |
| article html file updated | 7 February 2013 09:50 CET | Update | - |
| article html file updated | 7 February 2013 00:20 CET | Update | - |
| article html file updated | 6 February 2013 05:37 CET | Update | - |
| article html file updated | 29 January 2013 01:22 CET | Update | - |
| article html file updated | 26 January 2013 07:35 CET | Update | - |
| article html file updated | 23 January 2013 08:00 CET | Original file | - |
