| article html file updated | 17 June 2015 09:38 CEST | Update | https://www.mdpi.com/1424-8220/13/6/6936 |
| article html file updated | 19 July 2013 09:50 CEST | Original file | N/A |
| article xml file uploaded | 19 July 2013 09:50 CEST | Original file | https://www.mdpi.com/1424-8220/13/6/6936/xml |
| article pdf uploaded. | 24 May 2013 12:29 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/6/6936/pdf |
