| article html file updated | 29 June 2017 13:17 CEST | Update | https://www.mdpi.com/1424-8220/11/2/2175 |
| article html file updated | 16 June 2015 14:16 CEST | Update | - |
| 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/1424-8220/11/2/2175/xml |
| article html file updated | 6 February 2013 19:54 CET | Update | - |
| article html file updated | 5 February 2013 23:49 CET | Update | - |
| article html file updated | 28 January 2013 21:19 CET | Update | - |
| article html file updated | 26 January 2013 01:08 CET | Update | - |
| article html file updated | 22 January 2013 10:39 CET | Original file | - |
