| article html file updated | 16 June 2015 21:26 CEST | Update | https://www.mdpi.com/1424-8220/12/2/1455 |
| 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/1424-8220/12/2/1455/xml |
| article html file updated | 7 February 2013 10:03 CET | Update | - |
| article html file updated | 7 February 2013 00:30 CET | Update | - |
| article html file updated | 6 February 2013 05:48 CET | Update | - |
| article html file updated | 29 January 2013 01:32 CET | Update | - |
| article html file updated | 26 January 2013 07:51 CET | Update | - |
| article html file updated | 23 January 2013 08:52 CET | Original file | - |
