| article html file updated | 20 August 2015 03:29 CEST | Update | https://www.mdpi.com/1424-8220/14/4/6891 |
| article html file updated | 6 August 2014 12:25 CEST | Update | - |
| article xml file uploaded | 6 August 2014 12:25 CEST | Update | https://www.mdpi.com/1424-8220/14/4/6891/xml |
| article supplementary file uploaded. | 4 August 2014 10:35 CEST | - | https://www.mdpi.com/1424-8220/14/4/6891#supplementary |
| article html file updated | 25 July 2014 12:22 CEST | Update | - |
| article xml file uploaded | 25 July 2014 12:22 CEST | Update | - |
| article html file updated | 20 May 2014 13:52 CEST | Original file | - |
| article xml file uploaded | 20 May 2014 13:51 CEST | Original file | - |
| article pdf uploaded. | 16 April 2014 11:58 CEST | Version of Record | https://www.mdpi.com/1424-8220/14/4/6891/pdf |
