| article html file updated | 20 August 2015 18:31 CEST | Update | https://www.mdpi.com/1424-8220/14/9/16972 |
| article html file updated | 24 October 2014 07:51 CEST | Original file | - |
| article xml file uploaded | 24 October 2014 07:51 CEST | Original file | https://www.mdpi.com/1424-8220/14/9/16972/xml |
| article pdf uploaded. | 12 September 2014 16:15 CEST | Updated version of record | https://www.mdpi.com/1424-8220/14/9/16972/pdf |
| article pdf uploaded. | 11 September 2014 14:14 CEST | Version of Record | https://www.mdpi.com/1424-8220/14/9/16972/pdf-vor |
