| article html file updated | 16 June 2015 19:35 CEST | Update | https://www.mdpi.com/1424-8247/4/11/1434 |
| article html file updated | 17 June 2014 04:43 CEST | Update | - |
| article xml file uploaded | 17 June 2014 04:43 CEST | Original file | https://www.mdpi.com/1424-8247/4/11/1434/xml |
| article html file updated | 6 February 2013 23:15 CET | Update | - |
| article html file updated | 6 February 2013 03:03 CET | Update | - |
| article html file updated | 29 January 2013 00:20 CET | Update | - |
| article html file updated | 26 January 2013 05:53 CET | Update | - |
| article html file updated | 23 January 2013 01:01 CET | Original file | - |
