| article html file updated | 20 August 2015 03:43 CEST | Update | https://www.mdpi.com/1424-8220/14/4/6922 |
| article html file updated | 25 July 2014 12:22 CEST | Update | - |
| article xml file uploaded | 25 July 2014 12:22 CEST | Update | https://www.mdpi.com/1424-8220/14/4/6922/xml |
| article html file updated | 20 May 2014 13:41 CEST | Original file | - |
| article xml file uploaded | 20 May 2014 13:41 CEST | Original file | - |
| article pdf uploaded. | 17 April 2014 14:39 CEST | Version of Record | https://www.mdpi.com/1424-8220/14/4/6922/pdf |
