| article html file updated | 19 August 2015 12:15 CEST | Update | https://www.mdpi.com/1424-8220/13/12/16641 |
| article html file updated | 14 January 2014 08:57 CET | Original file | - |
| article xml file uploaded | 14 January 2014 08:57 CET | Original file | https://www.mdpi.com/1424-8220/13/12/16641/xml |
| article pdf uploaded. | 4 December 2013 10:42 CET | Version of Record | https://www.mdpi.com/1424-8220/13/12/16641/pdf |
