| article html file updated | 17 June 2015 13:01 CEST | Update | https://www.mdpi.com/1424-8220/13/9/11923 |
| article html file updated | 4 November 2013 10:27 CET | Original file | - |
| article xml file uploaded | 4 November 2013 10:25 CET | Original file | https://www.mdpi.com/1424-8220/13/9/11923/xml |
| article pdf uploaded. | 9 September 2013 16:15 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/9/11923/pdf |
| article pdf uploaded. | 9 September 2013 09:27 CEST | Version of Record | - |
