| article html file updated | 16 June 2015 04:38 CEST | Update | https://www.mdpi.com/1424-8220/8/7/4308 |
| article html file updated | 31 July 2013 09:19 CEST | Update | - |
| article xml file uploaded | 31 July 2013 09:19 CEST | Update | https://www.mdpi.com/1424-8220/8/7/4308/xml |
| article html file updated | 1 July 2013 11:31 CEST | Original file | - |
| article xml file uploaded | 1 July 2013 11:31 CEST | Original file | - |
