| article html file updated | 21 August 2015 02:13 CEST | Update | https://www.mdpi.com/1424-8220/14/11/21770 |
| article html file updated | 29 December 2014 02:53 CET | Original file | - |
| article xml file uploaded | 29 December 2014 02:53 CET | Original file | https://www.mdpi.com/1424-8220/14/11/21770/xml |
| article pdf uploaded. | 18 November 2014 11:44 CET | Version of Record | https://www.mdpi.com/1424-8220/14/11/21770/pdf |
