| article html file updated | 17 June 2015 09:55 CEST | Update | https://www.mdpi.com/1424-8220/13/6/7308 |
| article html file updated | 19 July 2013 09:53 CEST | Original file | - |
| article xml file uploaded | 19 July 2013 09:53 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/7308/xml |
| article pdf uploaded. | 3 June 2013 12:00 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/7308/pdf |
