| article html file updated | 17 June 2015 02:01 CEST | Update | https://www.mdpi.com/1424-8220/12/9/12208 |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/1424-8220/12/9/12208/xml |
| article html file updated | 7 February 2013 14:44 CET | Update | - |
| article html file updated | 7 February 2013 05:46 CET | Update | - |
| article html file updated | 6 February 2013 10:03 CET | Update | - |
| article html file updated | 29 January 2013 06:20 CET | Update | - |
| article html file updated | 24 January 2013 01:09 CET | Original file | - |
