| article html file updated | 17 June 2015 13:08 CEST | Update | https://www.mdpi.com/1424-8220/13/9/12244 |
| article html file updated | 4 November 2013 10:31 CET | Original file | - |
| article xml file uploaded | 4 November 2013 10:31 CET | Original file | https://www.mdpi.com/1424-8220/13/9/12244/xml |
| article pdf uploaded. | 13 September 2013 14:33 CEST | Updated version of record | https://www.mdpi.com/1424-8220/13/9/12244/pdf |
| article pdf uploaded. | 12 September 2013 11:20 CEST | Version of Record | https://www.mdpi.com/1424-8220/13/9/12244/pdf-vor |
