| article html file updated | 16 June 2015 16:59 CEST | Update | https://www.mdpi.com/1424-8247/4/7/950 |
| article html file updated | 17 June 2014 04:44 CEST | Update | - |
| article xml file uploaded | 17 June 2014 04:44 CEST | Original file | https://www.mdpi.com/1424-8247/4/7/950/xml |
| article html file updated | 6 February 2013 21:38 CET | Update | - |
| article html file updated | 6 February 2013 01:29 CET | Update | - |
| article html file updated | 28 January 2013 22:53 CET | Update | - |
| article html file updated | 26 January 2013 03:22 CET | Update | - |
| article html file updated | 22 January 2013 18:23 CET | Original file | - |
